![]() ![]() |
![]() |
|
UFDC Home |
myUFDC Home | Help | ![]() |
Main | |
Main | |
Agenda | |
Table of Contents | |
Introduction | |
History of the Gulf Coast Research... | |
Current list of program leader... | |
GCREC-Bradenton field plot... | |
Facilities of the GCREC-Braden... | |
Research | |
Acknowledgement | |
Map: location of GCREC |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Full Citation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() ![]() ![]() ![]()
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table of Contents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Main
Main Main Main Agenda Page i Table of Contents Page 1 Page 2 Page 3 Introduction Page 4 History of the Gulf Coast Research and Education Center Page 5 Current list of program leaders Page 6 Page 7 GCREC-Bradenton field plot diagram Page 8 Facilities of the GCREC-Bradenton Page 9 Page 10 Research Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Acknowledgement Page 51 Page 52 Page 53 Map: location of GCREC Page 54 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Full Text | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CS Gulf Coast Research and Education Center Bradenton, Florida Vegetable fied Pay May 20, 1987 Central Science Library JUN 171987 University of Florida Institute of Food and Agricultural Sciences University of Florida Bradenton GCREC Research Report BRA 1987-12 BRADENTON GCREC Research Report BRA1987-12 GULF COAST RESEARCH & EDUCATION CENTER IFAS, UNIVERSITY OF FLORIDA 5007 60th Street East Bradenton, Florida 34203 37th VEGETABLE FIELD DAY MAY 20, 1987 J. P. Jones, D. N. Maynard, W. E. Waters, Editors Printing: Editorial Department, IFAS, University of Florida, Gainesville, FL May 1987 Gulf Coast Research and Education Center, Bradenton University of Florida, IFAS 37TH VEGETABLE FIELD DAY PROGRAM Wednesday May 20, 1987 Field Day Coordinators John Paul Jones and Don N. Maynard Moderator: Don N. Maynard, Extension Vegetable Specialist 8:45 AM Assembly and Registration 9:00 W. E. Waters, Center Director Welcome and Introduction 9:10 J. M. Davidson, Dean for Research IFAS Research Overview 9:25 A. A. Csizinszky Biostimulants and Cole Crop Nutrition 9:35 C. D. Stanley Vegetable Water Management 9:45 C. M. Geraldson Vegetable Crop Nutrition 9:55 S. S. Woltz Nutrition and Fusarium Diseases 10:05 J. P. Gilreath Weed Control Programs for Vegetables 10:15 D. J. Schuster Insect Pest Management on Vegetables 10:25 COFFEE BREAK 10:45 T. K. Howe Vegetable Variety Trials 10:55 D. N. Maynard Specialty Vegetable Crops 11:05 J. W. Scott Tomato Breeding Update 11:15 G. A. Clark Trickle Irrigation & Fertilization of Tomato 11:25 J. B. Jones Bacterial Diseases of Vegetables 11:35 J. P. Jones Tomato Disease Control 11:45 A. J. Overman Nematode Management 12:00 noon * DUTCH TREAT PICNIC BOX LUNCH * 1:30 PM Tour of Research Plots: P. R. Gilreath, Manatee County Extension R. Mitchell, Hillsborough County Extension L. L. Rozar, Sarasota County Extension 4:00 Adjourn SPECIAL THANKS are extended to Southern Agricultural Insecticides, Agricultural Pest Management, Producer's Fertilizer, Asgrow-Florida, Harris Moran Seed Company Inc., and Northrup King Company for providing refreshments for the Field Day. TABLE OF CONTENTS TABLE OF CONTENTS .............. ... .................... ..... ........ 1-3 INTRODUCTION........................................................ 4 HISTORY OF THE GULF COAST RESEARCH & EDUCATION CENTER................. 5 CURRENT LIST OF PROGRAM LEADERS, APPOINTMENT DATE, AND AREA OF SPECIALIZATION ......................... ......... ........... ... .... 6-7 GCREC-Bradenton Field Plot Diagram.................................. 8 FACILITIES OF THE GCREC-BRADENTON..................................... 9-10 PEPPER WEEVIL SAMPLING ON PEPPER, D. Riley, D. J. Schuster............ 11 IMPACT OF COPPER BACTERICIDES ON CONTROL OF LEPIDOPTEROUS LARVAE D. J. Schuster, J. B. Jones........................................... 11 INSECTICIDES ON PEPPER, D. J. Schuster................................ 12 INSECTICIDES ON TOMATO, D. J. Schuster................ .............. 13 LEAFMINER RESISTANCE IN TOMATO, D. J. Schuster, J. W. Scott........... 14 EVALUATION OF VORLEX APPLIED VIA THE WHEEL FOR DOUBLE CROPS, A. J. Overman. ............................................. ......... 15 EVALUATION OF SUMMER SOLARIZATION AND FALL FUMIGATION FOR DOUBLE CROPPED TOMATO, A. J. Overman, J. P. Jones.......................... 16 EFFICACY AND MOVEMENT OF MOCAP 10G (ETHOPROP) FOR NEMATODE CONTROL FOR TOMATO PRODUCTION, C. D. Stanley, A. J. Overman................... 17 CHEMICALS FOR THE CONTROL OF BACTERIAL SPOT OF TOMATO, J. B. Jones, J. P. Jones.............................................. 18 TOMATO EARLY BLIGHT EXPERIMENT, J. P. Jones, J. B. Jones................ 19 CHEMICAL CONTROL OF BACTERIAL SPOT OF TOMATO, J. B. Jones, S. S. Woltz, J. P. Jones................................. 19 OKRA CULTIVAR EVALUATIONS, D. N. Maynard............................. 20 CALABAZA SEED INCREASE, D. N. Maynard................................ 20 FUSARIUM WILT (RACE 3) REACTION ON TOLERANT AND SUSCEPTIBLE TOMATO LINES, J. W. Scott, J. P. Jones.................................... 21 ICEBOX WATERMELON POSTHARVEST STUDIES, D. N. Maynard, L. A. Risse..... 22 ICEBOX WATERMELON SPACING TRIAL, D. N. Maynard, P. R. Gilreath........ 22 TOMATO BACTERIAL SPOT RESISTANCE BREEDING, J. W. Scott, J. B. Jones, G. E. Cameron............................. 23 LEAFMINER SAMPLING ON TOMATO, T. G. Zoebisch, D. J. Schuster.......... 23 RESPONSE OF TOMATO TO COMMAND, J. P. Gilreath....................... 24 RESPONSE OF PEPPER TO ROUNDUP SPRING 1987, J. P. Gilreath............. 25 WEED CONTROL IN TOMATO ROW MIDDLES WITH RONSTAR, J. P. Gilreath....... 26 EFFECT OF 2,4-D AND DICAMBA ON TOMATO AND PEPPER, J. P. Gilreath...... 27 WEED CONTROL IN PEPPER ROW MIDDLES WITH GOAL, J. P. Gilreath.......... 28 MORNINGGLORY CONTROL IN TOMATO ROW MIDDLES, J. P. Gilreath............ 29 CUCURBIT DISEASE EXPERIMENT, J. P. Jones, J. B. Jones, C. H. Blazquez.............................. 30 TENSIOMETER SCHEDULED MICRO-IRRIGATED TOMATO PRODUCTION, C. D. Stanley, G. A. Clark, A. A. Csizinszky.......................... 31 SOIL BASED HYDROPONIC CULTURE, C. M. Geraldson........................ 31 EFFECT OF LIQUID PLASTIC, DRIP TUBE PLACEMENT AND PORE SPACING ON EFFICACY OF METHYL BROMIDE APPLIED VIA THE TUBE FOR A DOUBLE CROP, A. J. Overman...................................................... 32 EVALUATION OF VAPAM AND METHYL BROMIDE APPLIED VIA DRIP TUBE FOR DOUBLE CROP CULTURE, A. J. Overman................................. 33 SOIL BASED HYDROPONIC CULTURE, C. M. Geraldson........................ 34 TOMATO VARIETY TRIALS, T. K. Howe, J. W. Scott, W. E. Waters..........35-37 TOMATO FUSARIUM WILT RACE 3 AND FUSARIUM CROWN ROT RESISTANCE BREEDING, J. W. Scott................................................ 38 EGGPLANT VARIETY TRIALS, T. K. Howe, W. E. Waters..................... 39 BELL PEPPER VARIETY TRIALS, T. K. Howe, W. E. Waters...................40-41 EVALUATION OF FOLIAR AND SOIL APPLIED BIOSTIMULANTS AND NUTRIENTS ON GREEN PEPPER, A. A. Csizinszky..................................... 42 EVALUATION OF FOLIAR AND SOIL APPLIED BIOSTIMULANTS AND NUTRIENTS ON TOMATO, A. A. Csizinszky.......................................... 43 INHERITANCE OF RESISTANCE TO BACTERIAL SOFT ROT PHASE 1, J. A. Bartz, J. W. Scott.............................................. 44 GENOTYPE EVALUATION OF FIRMNESS AND TEXTURAL COMPONENTS IN TOMATO, Joe Ahrens, J. W. Scott, D. J. Huber.................................. 45 TOMATO FUSARIUM WILT RACE ASSOCIATION PHASE 1, Brian Bournival, J. W. Scott ............... .......................... 46 DEVELOPMENT OF THE IDEAL PLANT HABIT FOR GROUND TOMATOES, J. W. Scott ........ ..... ....... ... .. .. .... ............. ... .......... 47 BREEDING MALE-STERILE TOMATOES, J. W. Scott........... .............. 48 BREEDING PARTHENOCARPIC TOMATOES, J. W. Scott.......................... 48 TOMATO BACTERIAL WILT RESISTANCE BREEDING, J. W. Scott, J. B. Jones, G. E. Cameron.............................. 49 RELATIONSHIP BETWEEN BACTERIAL SPOT AND BACTERIAL WILT RESISTANCE IN TOMATO, J. W. Scott, G. E. Cameron, J. B. Jones.................... 49 SWEET CORN VARIETY TRIAL, T. K Howe, W. E. Waters..................... 50 ACKNOWLEDGEMENT OF INDUSTRY SUPPORT FOR THE GCREC-Bradenton...........51-53 LOCATION OF THE GCREC-Bradenton..........................INSIDE BACK COVER INTRODUCTION On behalf of the faculty and staff, I want to welcome each of you to the Gulf Coast Research and Education Center, at Bradenton, Florida. This Center was initiated in 1925 as the Tomato Disease Laboratory (a one-man operation in Palmetto), and the first ornamental programs began about 17 years later. This Center, with the affiliated Agricultural Research and Education Center in Dover, is a Research and Education unit of the University of Florida's Institute of Food and Agricultural Sciences. In Bradenton, we have two grant-supported scientist positions, three Extension Specialist positions, and 16 state research scientists from various disciplines of training who participate in all phases of vegetable and ornamental horticulture. This interdisciplinary team approach, combining several research disciplines and a wide range of industry and faculty contacts, often is more productive than could be accomplished with limited investments in independent programs. The Center's primary mission is to develop new and expand existing knowledge and technology, and to disseminate new scientific knowledge on vegetable and ornamental crops in Florida, so that agriculture remains efficient and economically sound. The secondary mission of the Center is to assist the Cooperative Extension Service, IFAS campus departments in which Center faculty hold appropriate liaison appointments, and other research centers in extension, educational training, and cooperative research programs for the benefit of Florida's producers, students and citizens. Program areas of emphasis include: (1) genetics, breeding, and varietal development and evaluation; (2) biological, chemical, and mechanical pest management for diseases, insects, nematodes, and weeds; (3) production efficiency, culture, management of environmental stress; (4) water utilization, quality, conservation, and management; (5) food quality, safety, utilization and post-harvest physiology of horticultural crops; (6) air, water, and land management; (7) mechanization, harvesting, handling, and engineering; (8) energy conservation techniques and alternate energy sources; (9) advancement of the basic knowledge in disciplines; (10) regional and state cooperative extension programs and public service; and (11) student advisement and teaching. Information presented in this publication summarizes the active research projects under way this season on vegetable crops. We sincerely appreciate your interest and support of these research programs, and continuously solicit your suggestions for improvement of our research and extension programs. I- ,,4 / / Will E. Waters Center Director HISTORY OF THE GULF COAST RESEARCH & EDUCATION CENTER The University of Florida's Gulf Coast Research and Education Center in Bradenton originated in the fall of 1925 with construction of the Tomato Disease Laboratory. Tomato Disease Laboratory: In 1925, a 20-acre tract of county-owned property in Palmetto was made available with the cooperation of the Manatee County Board of Commissioners with money and equipment supplied by local growers. The primary objective of the laboratory was to formulate a control for nailhead spot of tomatoes. Later studies emphasized the breeding for resistance to Fusarium wilt and the control of tobacco mosaic virus on tomatoes. In 1937, with the expansion of the vegetable industry in Manatee County and surrounding areas, the state legislature authorized new facilities for the research program. Vegetable Crops Laboratory: In August 1938, the Manatee County Commissioners donated 80% of the purchase price of a 106-acre tract of land on the east side of Bradenton. This expanded program led to the establishment of the Vegetable Crops Laboratory. Following this relocation, horticultural, entomological and soil studies were initiated on tomatoes, peppers, lettuce, sweet corn and other vegetables. Since the laboratory was located in the gladiolus growing area, the scope was further broadened in 1942 to include disease problems confronting gladiolus growers. Gulf Coast Experiment Station: In March 1951 at a meeting of the State Board of Control, the Vegetable Crops Laboratory was given the status of a branch station and was renamed the Gulf Coast Experiment Station. Investigations were then initiated dealing with chemical weed control, nematodes and other soil-borne pests. The ornamental phase was broadened to include chrysanthemums and other commercial cut flowers. In the late 1950's it became apparent that the facilities on the outskirts of Bradenton were no longer adequate for the research program. In 1959 a 200-acre tract of land was acquired eight miles east of Bradenton. All of the vegetable experimental field programs were moved to this location. In 1965, upon completion of the construction of office and laboratory facilities, farm buildings, greenhouses and a residence, all research programs were conducted at this new site. Agricultural Research and Education Center-Bradenton: In 1971 the Gulf Coast Experiment Station was renamed the Agricultural Research and Education Center to emphasize the programs of both research and education. During the next 14 years the Center research and extension programs were broadened and the physical plant expanded. Gulf Coast Research and Education Center: In 1984 the Agricultural Research and Education Center in Bradenton was renamed the Gulf Coast Research and Education Center (GCREC) to emphasize the regional status of the Center. The GCREC has administrative and research supervision over one other Research Center the Agricultural Research and Education Center in Dover which specializes in strawberry research. CURRENT LIST OF PROGRAM LEADERS, APPOINTMENT DATE, AND AREA OF SPECIALIZATION Gulf Coast Research and Education Center Bradenton, Florida Waters, Will E., 1960. Horticulturist and Center Director. Administration, soil and plant nutrition, and ornamental horticulture. Cameron, G. E., 1986. Asst. in Plant Pathology. Ecology of bacterial pathogens. Clark, G. A., 1986. Extension Water Management Specialist. Extension education and cooperative research on vegetable and ornamental crops. Csizinszky, A. A., 1976. Assoc. Horticulturist. Production systems, crop management and post-harvest studies of vegetable crops. Engelhard, A. W., 1966. Plant Pathologist. Etiology and control of diseases of ornamental crops. Geraldson, C. M., 1951. Soil Chemist. Soil nutritional problems and their relationship with cultural methods for vegetable production. Gilreath, J. P., 1981. Assoc. Horticulturist. Weed control of vegetable and ornamental crops. Harbaugh, B. K., 1975. Ornamental Horticulturist. Systems for production, harvesting and marketing of ornamental crops. Howe, T. K., 1979. Biological Administrator I. Variety evaluations for ornamental and vegetable crops. Jones, J. B., 1981. Assoc. Plant Pathologist. Ecology and control of bacterial diseases of ornamental and vegetable crops. Jones, J. P., 1958. Plant Pathologist. Etiology and control of diseases of vegetable crops. Kring, J. B., 1985. Adjunct Professor of Entomology. Insect behavior. Maynard, D. N., 1985. Extension Vegetable Specialist. Extension education programs and cooperative research on vegetable crops. Overman, A. J., 1945. Nematologist. Etiology and control of nematode problems on ornamentals and vegetables. Price, J. F., 1978. Assoc. Entomologist. Identification, biology and control of insects and mites of ornamental and strawberry crops. Schuster, D. J., 1975. Entomologist. Identification, biology and control of insects and mites of vegetables crops. Scott, J. W., 1981. Assoc. Geneticist. Tomato variety development and genetics. Stanley, C. D., 1979. Assoc. Soil Scientist. Soil-water relations for ornamental and vegetable crops. Wilfret, G. J., 1969. Geneticist. Breeding and development of new varieties of cut flowers and other ornamental crops. Woltz, S. S., 1953. Plant Physiologist. Physiological and nutritional disorders and diseases of vegetable and ornamental crops. Burgis, D. S., 1946. Horticulturist Emeritus. Vegetable production, weed control and growth regulators. Magie, R. O., 1945. Plant Pathologist Emeritus. Etiology and control of diseases of ornamental crops with emphasis on gladiolus flower and corm diseases. Spencer, E. S., 1944. Soil Chemist Emeritus. Administration. Agricultural Research & Education Center Dover, Florida Albregts, E. E., 1967. Soil Chemist. Center administration, production, soil and plant nutrition of strawberry and vegetable crops. Howard, C. M., 1967. Plant Pathologist. Etiology and control of strawberry and vegetable diseases. Chandler, C. K., 1987. Asst. Geneticist. Strawberry breeding and development of new varieties of strawberry. GCREC-Bradenton Field Plot Diagram OL (, 1 D ; i lake J V j L -j I E i, f n- L L Caruo .Rd C io. '-'. 6/ h S E- -'s / r : / h', L ( n (^'1.. i i - 1.- 1 rNi e s d 6 S. - E W L FACILITIES IN 1987 OF THE GULF COAST RESEARCH & EDUCATION CENTER BRADENTON The Gulf Coast Research and Education Center-Bradenton has developed excellent new facilities since 1965. Each scientist has available office, laboratory, greenhouse and field areas as well as field and laboratory technicians to support his/her research programs. The research facilities consist of 200 acres of sandy soil located at the main Center, 47 buildings containing 30 offices, a library, 18 laboratories, 1 headhouse, 1 large research and storage service building, 18 greenhouses, 12 storage buildings, 4 walk-in cold rooms, 2 walk-in growth rooms, 2 large saran ranges for ornamental plants, 3 maintenance shops, 4 irrigation wells, and a fleet of vehicles and tractors. The list below is a numerical key to facilities shown in the photograph on the adjacent page. KEY TO FACILITIES S Building Name Bu Office and Laboratories Ornamental Saran House Horticulture Greenhouse (Sawtooth) Chemical and golf cart storage Nematology Greenhouse Ornamental Greenhouse Entomology-Solar Greenhouse Tomato Breeding Greenhouse Ornamental Res. Saranhouse Plant Production Greenhouse Farm Storage Building Speedling Greenhouse Soil and Media Storage Aluminum Storage Building Irrigation Storage Bldg. Tomato Processing Shed Pesticide Storage Building IPM Headhouse Air Fumigation Greenhouse Soil Sterilization Building Pesticide Weighing Facility Plant Physiology Greenhouse Research and Service Storage Tomato Disease Screening Greenhouse Phvsiolonv Greenhouse tate ilding # 7601 7616 7644 7629 7647 7628 7635 7636 7626 7625 7633 7630 7643 7638 7640 7639 7609 7610 7632 7631 7611 7637 7653 7642 7657 Numerical Key 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 C Building Name Bui Vegetable Crops Greenhouse Ornamental Genetics Greenhouse Horticultural Greenhouse Entomology/Tomato Breeding Greenh. Plant Pathology Greenhouse Headhouse-Laboratories, Offices Lawn Shed Location Farm Operations Building Farm Maintenance Farm Service Building Residence Graduate Student Housing Graduate Student Housing Educational Pavilion Pavilion Annex #1 Pavilion Annex #2 Potting Shed and Implement Shelter Hazardous Chemical Storage Equipment Storage Building Open Equipment Building Bulb Handling Building Horticultural Supply Storage tate ilding # 7656 7627 7613 7614 7615 7624 7605 7604 7654 7602 7634 7645 7641 7648 7649 7623 7655 7607 7646 7621 7650 Numerical Key 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 I I 47 --~~-----c~~ --- 7657 ". - 7' 4 fi p. "t i , **"! -fcs Z~ - -- r SadlC -L b ; --.I- jg s-c: -- --- T ce, ..... ~%urg~*~(gr~~n~R` : ~ZI , Ly~ :h ';1 r)l r PEPPER WEEVIL SAMPLING ON PEPPER D. Riley, D. J. Schuster Location: Block B, Land 4, 5 Objective: To study the diurnal and spatial distributions of pepper weevil adults in order to develop an improved sampling method. Crop: Pepper, cv. Jupiter, transplanted Feb. 26, 1987. Operation: At least 50 plants will be selected weekly on a stratified random basis. This will ensure that all areas of the field are sampled. Each plant will be visually inspected every daylight hour. The number of adults will be recorded according to their location on the plants: terminals, stems, young leaves and old leaves. Summary: In a previous experiment in Honduras, the mean number of adult pepper weevils was greatest on pepper terminals at 0800, 0900 and 1000 hours than at others times. We will determine where the weevils are located at other time intervals. This information will enable scouts to better sample peppers for weevil adults at times other than 0800, 0900 and 1000. IMPACT OF COPPER BACTERICIDES ON CONTROL OF LEPIDOPTEROUS LARVAE D. J. Schuster, J. B. Jones Location: Block B, Land 5 Objective: To evaluate the impact of copper compounds on the survival of armyworm caterpillars and their damage on tomato. Crop: Tomato, cv. Sunny; transplanted Feb. 24, 1987. Treatments: 1. Check (water) 2. Copper Count N (3 qt) 3. Tribasic Copper Sulfate (4 lb) 4. Tribasic Copper Sulfate (2 Ib) 5. Kocide 101 (4 lb) 6. Kocide 101 (2 lb) Operation: Treatments will be applied weekly beginning about 2-3 weeks after transplanting. The number of caterpillars will be counted every 2 weeks. Larvae will be collected, reared in the laboratory and observed for survival and disease incidence. The number of caterpillar damaged fruit will be counted at harvest. Summary: In previous experiments, the application of certain copper compounds has resulted in more fruit damaged by lepidopterous larvae. However, this has not been consistent in all seasons. The compounds may 1) not be affecting caterpillars, 2) be increasing oviposition, 3) increasing mortality due to naturally occurring pathogens. The laboratory data may help answer these questions. INSECTICIDES ON PEPPER D. J. Schuster Location: Block B, Land 10 Objective: To evaluate a new insecticide with the registered standards for control of pepper weevil on bell pepper. Crop: Pepper, cv. Jupiter; transplanted Feb. 26, 1987. Treatments: 1. Check (water-sprayed) 2. Baythroid 2 EC (0.0384 Ib ai) 3. Asana 1.9 EC (0.025 lb ai) 4. Pydrin 2.4 EC (0.1 lb ai) 5. Vydate 2L (1.0 lb ai) Operation: Treatments will be applied weekly beginning at first flowering. Excised and harvested fruit will be examined for damage caused by pepper weevils. Summary: All insecticidal treatments have resulted in reduced pepper weevil damage in previous small plot experiments compared to the water check. The relative efficacy of the insecticides has varied from season to season. INSECTICIDES ON TOMATO D. J. Schuster Location: Block B, Land 10 Objective: To evaluate chemical and microbial insecticides for control of lepidopterous larvae and evaluate chemicals for control of leafminers on tomato. Crop: Tomato, cv. Sunny; transplanted Feb. 24, 1987. Treatments: 1. Check (water) 2. Dipel 2x (0.5 lb product) 3. Dipel 2x (0.5 lb product) & corn oil (1 qt) 4. Dipel 2x (0.5 lb product) & corn oil (1 qt) applied twice weekly. 5. ABG 6190 (1 qt) 6. ABG 6190 (1 qt) & corn oil (1 qt) 7. ABG 6190 (1 qt) & corn oil (1 qt) applied twice weekly. 8. Baythroid 2 EC (0.0344) 9. Baythroid 2 EC 0.0250 lb ai) & Trigard 75 WP (0.125 lb ai) 10. Baythroid 2 EC (0.0344 lb ai) & Trigard 75 WP (0.125 lb ai) 11. Trigard 75 WP (0.125 lb ai) 12. Trigard 75 WP (2 Ib ai) applied to soil pre-plant, incorporated. Operation: Treatments will be applied weekly (except where noted above) beginning 2-3 weeks after transplanting. The number of leafmines and caterpillars will be periodically evaluated. The number of undamaged fruit and those damaged by insects will be determined at harvest. Summary: The microbial insecticides, Dipel and ABG 6190, may be more efficacious when applied twice weekly or when combined with corn oil. Baythroid, a pyrethroid, has consistently controlled caterpillars and stink bugs but not leafminers. Trigard has consistently controlled leafminers but not caterpillars or stink bugs. Combining Baythroid and Trigard gives broad spectrum insect control. LEAFMINER RESISTANCE IN TOMATO D. J. Schuster, J. W. Scott Location: Block B, Lands 11 and 12 Objective: To evaluate Lycopersicon germplasm for resistance to leafminers. Crop: Tomato; transplanted March 3. Selections: 'Sunny' susceptible standard PI 126449 & PI 134417 resistant standards 870967-90 germplasm for evaluation. Operation: Foliage samples of each plant of each selection will be evaluated in the laboratory for the concentration of decanone, a chemical associated with insect resistance. Periodic evaluations of the extent of leafmining in each plant will be compared with the chemical analyses results. Fruit from individual plants indicating leafminer resistance will be harvested for further cycles of selection. Summary: PI 126449 & PI 134417 are highly resistant to leafminers; however, these PI's are wild species of the tomato and the transfer of resistance and horticultural characteristics is difficult. The correlation between decanone content and leafmining has not been consistent. Combining both lab and field evaluations, however, could assure the elimination of pseudoresistant plants (those which are not resistant but have escaped leafminer attack). EVALUATION OF VORLEX APPLIED VIA THE WHEEL FOR DOUBLE CROPS A. J. Overman Location: Block C, Land 20 Objective: To devise a method for reducing soil pests generated on the initial fall crop which might be limiting on the re-crop without disturbing the mulched bed. Crop: Tomato, cv. 'Sunny', transplanted Feb. 27. Treatments: Control Vorlex Vorlex 35 gal/a 35 gal/a 1 Run mid bed 2 Runs 1 ft apart Operations: 1. The fall crop was grown with no fumigation. Ground plants were sprayed for foliar pests, permitted to mature and mowed. 2. Vorlex was applied with the fertilizer wheel which delivers liquid through 1 1/4" long probes spaced about 6" apart down the bed. 3. Plants were set 9 days after treatment. Comments: No information has been collected, to date, on efficacy of Vorlex applied in this manner. EVALUATION OF SUMMER SOLARIZATION AND FALL FUMIGATION FOR DOUBLE CROPPED TOMATO A. J. Overman, J. P. Jones Location: Block C, Lands 3 and 21 Objective: To determine the long time benefit of and soil fumigant on tomato production. solarization, soil pH, Crop: Tomato, cv. 'Sunny', transplanted Oct. 2 and Feb. 24 Treatments: Sorghum + pH Sorghum + pH Sorghum + pH Sorghum + pH Sorghum + pH Sorghum + pH Solarization Solarization Solarization Solarization Solarization Solarization 6.0 - 6.0 6.0 - 7.5 7.5 7.5 - + pH + pH + pH + pH + pH + pH " pH - control SV 201 SMBC Control - V 201 - MBC 6.0 + co 6.0 + V 6.0 + MB 7.5 + co 7.5 + V 7.5 + MB 35 gal/A 300 lb/A 35 gal/A 300 lb/A ntrol 201 35 gal/A C 300 lb/A ntrol 201 35 gal/A C 300 lb/A Operation: Plots were established on the same site as during the summer and fall 1985 and spring 1986. Nematodes and wilt diseases were assayed in each season since summer 1985. Tomato yields were and will be recorded. Comments: To date, the tomato crop immediately following summer solarization has produced tomato yields equal to fumigation. Tomato as a re-crop in the spring has not benefitted from solarization, but did benefit from fumigation in the fall crop. Solarization gave exceptional control of Verticillium wilt during both seasons last year. Fusarium wilt and nematode control were less spectacular. 111 112 113 121 122 123 211 212 213 221 222 223 EFFICACY AND MOVEMENT OF MOCAP 10G (ETHOPROP) FOR NEMATODE CONTROL FOR TOMATO PRODUCTION C. D. Stanley, A. J. Overman Location: Block C, Land 5 and 6 Objective: 1) Determine persistence and movement of Mocap 10G (ethoprop) applied on a flatwoods soil for seep-irrigated tomato production. 2) Evaluate the efficacy of Mocap 10G (ethoprop) as a nematicide for seepage-irrigated tomato production. Crop: Tomato, cv. 'Sunny', transplants and 86393 SBK (selection resistant to Fusarium wilt). Treatments: Land 6 Mocap 10G treated 12 Ib ai/Acre Land 5 Nontreated check Water sample well location 1 North of plot area (across road) 2 Within plot area 3 East of plot area 4 West of plot area 5 Middle of plot area 6 South of plot area Operation: Movement studies 1) Soil and water sampling at scheduled intervals (up to 12 months) after application of pesticide. 2) Verification of existing models for movement and dissipation of Mocap. Efficacy studies 1) Nematode assays at tillage, 0, 40, 80, and 120 days after treatments. 2) Root-knot nematode galling index of roots dug after final harvest. 3) Fruit harvest recorded from 4 replicates established in non-treated control and treated blocks. Results: Incomplete CHEMICALS FOR THE CONTROL OF BACTERIAL SPOT OF TOMATO J. B. Jones, J. P. Jones Location: Block C, Land 25 Objective: To evaluate chemicals tomato (cv. Sunny). Treatments and Rates (per 100 gal): for the control of bacterial spot of Treatment Bravo C/M Bravo C/M Bravo C/M SDS 64220-0101-1501 SDS 64220-0101-1501 SDS 64220-0101-1501 Kocide 101 + Dithane M-45 Kocide 101 + Dithane M-45 Aliette Aliette Aliette Aliette Rhodax Rhodax UBI 1820 UBI 1825 B/C UBI 182 Ridomil MZ77 Ridomil MZ77 Ridomil/Bravo 81W + Kocide 101 Control 4.0 Ibs 6.0 lbs 4/5/6 lbs 3.0 lb 4.5 lbs 3/3.75/4.5 lbs 2.0 + 1.5 2.0 + 1.5 2 lb ai 4 lb ai 6 lb ai 8 lb ai 3 lb 3 lb 690 g 550 g 207 g 3 lbs 3 lbs 1 lb + 2 lbs Operation: Sunny tomato plants were set 2-20-87. Sprays applied once per week except treatments 8 and 13 which were applied at 5 day intervals and treatment 19 which was applied twice per week. Results: Incomplete Rate TOMATO EARLY BLIGHT EXPERIMENT J. P. Jones, J. B. Jones Location: Block C, Land 26 Objective: To evaluate fungicides, bactericides, and fungicide-bactericide combinations for the control of early blight of tomato. Treatments: Control Tribasic Copper Sulfate (TBCS) 4 lbs/100 gal Kocide 101 (101) 2 lbs/100 gal Dithane M-45 (M-45) 1.5 lb/100 gal M-45 + TBCS M-45 + 101 Bravo 720 (Bravo) 2 pt/100 gal Bravo + TBCS Bravo + 101 Benlate 1.0 lb/100 gal Rovral 1.0 lb/100 gal Rovral 0.5 lb/100 gal Operation: BHN 12 cherry variety set in the field February 87. Sprays were started 3-2-87. One-half of each plot was sprayed twice weekly, the remaining half only once weekly. Results: Incomplete. CHEMICAL CONTROL OF BACTERIAL SPOT OF TOMATO J. B. Jones, S. S. Woltz, J. P. Jones Location: Block C, Land 27 Objective: tomato. To evaluate chemicals for the control of bacterial spot of Crop: Tomato cv. Sunny Treatments and Rates per 100 gal: 1 Kocide 101 (2 lb) + Bravo 720 (1 qt) 2 Kocide 101 (2 Ib) + Dithane M-45 (1.5 lb) 3 Copper Count N (2 qts) + Bravo 720 (1 qt) 4 Copper Count N (2 qts) + Dithane M-45 (1.5 Ib) 5 Dithane M-45 (1.5 Ibs) 6 Bravo 720 (Iqt) 7 Formaturf (1 gal/128 gal) + Bravo 720 (1 qt) Operation: 'Sunny' tomato plants set 3-2-87. Chemicals applied twice per week starting 3-9-87. Results: Incomplete. OKRA CULTIVAR EVALUATIONS D. N. Maynard Location: Block C, Land 28 Objective: To evaluate commercial okra cultivars and hybrids and experimental lines. Crop: Okra; planted April 9, 1987 Treatments: The following entries are included: Variety Annie Oakley Annie Oakley Clemson Spineless 80 Clemson Spineless 80 Emerald NVH 2600 NVH 2601 Parson's Special Prelude (NVH 2555) PSR 1585 UGA Red Source Abbott & Cobb Petoseed Abbott & Cobb Northrup King Abbott & Cobb Northrup King Northrup King Texas Cooperative Extension Northrup King Petoseed Georgia Crop Improvement Operation: Standard okra cultural and pest management practices are followed. Early and total yields, pod characteristics, and plant characteristics will be determined. Summary: In previous trials, 'Annie Oakley', 'Clemson Spineless' and several experimental lines were high yielding. CALABAZA SEED INCREASE D. N. Maynard Location: Block C, Land 12; Block N, Land 16 Objective: To increase seed of 'La Primera' and 'La Segunda' calabaza squash. Crop: Squash, seeded March 10, 1987 Operation: Standard squash cultural and pest management practices are followed. Seed will be extracted from selected, typical fruit of each cultivar. Summary: Calabaza squash is an excellent product with potential for increased production. 'La Primera' and 'La Segunda' are improved cultivars introduced by Dr. Ray Volin, a former faculty member at the Tropical Research and Education Center, Homestead. Commercial seed of these cultivars is not available; seed produced here will be used in county extension demonstrations to make growers aware of the potential for calabaza production. FUSARIUM WILT (RACE 3) REACTION ON TOLERANT AND SUSCEPTIBLE TOMATO LINES J. W. Scott, J. P. Jones Location: Block C, Land 30 Objective: To evaluate the effect of tolerant and susceptible tomato lines. Fusarium wilt (race 3) on yields of Treatments: Tomato Line GCREC 515 GCREC 516 GCREC 517 GCREC 484 GCREC 492 GCREC 491 GCREC 487 GCREC 494 GCREC 505 GCREC 498 GCREC 510 GCREC 486 AUST 629 Sunny Bonny Best Cherry Grande Dis. Reaction Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Tolerant Susceptible Susceptible Susceptible Operation: The entire field was fumigated and one-half of each plot was infested with race 3 Fusarium. Plants were set 3-3-87. Yields will be measured from selected lines. Results: Some of the GCREC lines appear very promising and highly tolerant in greenhouse experiments. No field results have been obtained. ICEBOX WATERMELON POSTHARVEST STUDIES D. N. Maynard, L. A. Risse Location: Land C, Block 13 Objective: Icebox watermelon are being grown for use in postharvest studies. Crop: Watermelon, cv. 'Baby Fun', 'Mickylee', 'Minilee' Operation: Standard watermelon cultural and pest management practices are followed. Harvested melons will be transported to the USDA postharvest laboratory in Orlando for film wrapping and storage studies. Summary: It is necessary to determine storage parameters and the feasibility of film wrapping for both domestic and export marketing of icebox watermelons to enable greater production of these melons by Florida growers. ICEBOX WATERMELON SPACING TRIAL D. N. Maynard, P. R. Gilreath Location: Block C, Land 31 Objective: To determine the effects of in-row spacing on icebox watermelon fruit size and production. Crop: Watermelon, cv. 'Baby Fun' and 'Minilee'; transplanted Feb. 26, 1987. Treatments: Each cultivar is grown at 1.0, 1.5, and 2.0 ft. in-row spacing on beds on 9 ft. centers. Operation: Standard watermelon cultural and pest management practices are followed. At harvest, individual fruit weight and soluble solids will be determined. Summary: In previous trials, 'Baby Fun' fruit size was a bit too large for icebox size when grown at 2.0 ft. in-row spacing, whereas 'Minilee' fruit size was judged to be about ideal. This trial is designed to determine if fruit size of these cultivars can be controlled by in-row spacing. Identical trials are being conducted on commercial farms in Manatee and Collier Counties. TOMATO BACTERIAL SPOT RESISTANCE BREEDING J. W. Scott, J. B. Jones, G. E. Cameron Location: Block C, Lands 15-18 Objective: To select plants with good levels of bacterial spot resistance and horticultural type for future variety release. Field Set: February 27, 1987 Treatment: Ninety-five BC4SI's and control lines Hawaii 7998, Campbell-28, Sunny, Suncoast, and Horizon. Operation: Normal pesticide practices except no mancozeb and copper sprays. Plants were inoculated with 107 cfu/ml of Xanthomonas campestris pv. vesicatoria, the causal organism of bacterial spot. Overhead irrigation was then used to aid in disease infection. Plants were rated for resistance and will then be selected for horticultural type. Summary: It is hope that there will be some selections which combine bacterial spot resistance and enough horticultural type to allow for limited commercial testing as early as 1988. Selections will be re-tested on the same plots this fall. LEAFMINER SAMPLING ON TOMATO T. G. Zoebisch, D. J. Schuster Location: Block D, Lands 8, 9, 10 Objective: To develop a sampling procedure for estimating the density of leafminer adults and predicting the subsequent larval density. Crop: Tomato, var. 'Sunny' Transplanted: March 4, 1987 Operation: Cages will be placed over tomato plants in the field. Yellow sticky cards will be placed inside and outside of the cages and the numbers of leafminer adults trapped will be counted 24 hrs later. Leafminer adults remaining inside the cages will be killed with a pyrethum spray and removed from the cages. Known numbers of leafminer adults will be released into each cage. Sticky cards will once again be placed in each cage and the numbers of leafminer adults trapped will be counted 24 hrs later. The relationship between sticky card captures and known leafminer density will be described mathematically. This description will then be used to estimate the unknown leafminer densities. Summary: Experimentation completed in the fall 1986 season indicated a reasonable relationship between trap catches and known densities. This relationship will be studied further this spring. In addition, the relationship between estimated leafminer adult density and the subsequent predicted larval density will be studied. RESPONSE OF TOMATO TO COMMAND J. P. Gilreath Location: Block E, Land 6 middle of field Objective: To determine the effect of various concentrations of Command herbicide on tomato when applied to plant foliage (as in drift from a treated crop) as a single application versus two applications. Cultivar: Sunny Treatments: Treatment Rate No. of Stage of No. (lb.a.i./A) applications growth 1. Untreated check 0 1 1 2. Command 0.01 1 1 3. Command 0.1 1 1 4. Command 1.0 1 1 5. Command 0 2 1 & 2 6. Command 0.01 2 1 & 2 7. Command 0.1 2 1 & 2 8. Command 1.0 2 1 & 2 Stage of growth: 1 = prebloom, 2 = 14 days after prebloom application. Operation: Planted 2-27-87. Foliage of plants will be treated as indicated with directed sprays. Rates range from the high end of those likely to be encountered as drift to the rate for a direct application as might be experienced with a contaminated sprayer. Visual evaluations of plant injury will be made at intervals. Fruit will be harvested, sorted, and graded. Summary: Command has been accused in the midwest of volatilizing and drifting onto surrounding crops, including tomatoes, from soybean fields after application. Research in the fall of 1986 indicated no yield reduction where Command was applied pre or postbloom at rates up to 0.1 Ib.a.i./acre. Present research is designed to 1) support these findings, 2) determine if application of 1.0 lb. has an effect on yield, and 3) determine if multiple exposures will reduce yield. RESPONSE OF PEPPER TO ROUNDUP SPRING 1987 J. P. Gilreath Location: Block E, Land 6 South Objective: To determine the effect of single and multiple applications of low rates of Roundup on pepper plants at rates typical for both directed spray for weed control and drift of Roundup from area of application. Cultivar: Mercury Treatments: Treatment Rate No. of Stage of No. (lb.a.i./A) applications growth 1. Untreated check 0 1 1 2. Roundup 0.03 1 1 3. Roundup 0.06 1 1 4. Roundup 0.125 1 1 5. Roundup 0.25 1 1 6. Untreated check 0 1 2 7. Roundup 0.03 1 2 8. Roundup 0.06 1 2 9. Roundup 0.125 1 2 10. Roundup 0.25 1 2 11. Roundup 0.03 2 1 & 2 12. Roundup 0.06 2 1 & 2 13. Roundup 0.125 2 1 & 2 14. Roundup 0.25 2 1 & 2 Stage of growth: 1 = first bloom just open, 2 = fruit sizing abc in diameter. 'ut 1 inch Operation: Plants were transplanted 3-2-87 into mulched beds. Plants will be sprayed with Roundup as indicated. Visual evaluations will be made for injury and yield data will be taken. Summary: In spring 1986, rates as high as 0.25 lb were not injurious at either stage of growth; however, in fall 1986, rates of 0.125 lb. or greater reduced fruit yield. WEED CONTROL IN TOMATO ROW MIDDLES WITH RONSTAR J. P. Gilreath Location: Block E, Land 7 east 3 rows Objective: To evaluate Ronstar for weed control and crop phytotoxicity when applied to row middles of mulched tomatoes. Cultivar: Sunny Treatments: Treatment Rate Method of No. (lb.a.i./A) application 1. Untreated check -- 2. Ronstar 2EC 2.0 preemergence 3. Ronstar 2EC 3.0 preemergence 4. Ronstar 2EC 4.0 preemergence 5. Ronstar 2EC + 2.0 postemergence Paraquat + X-77 0.5 + 0.25% tank mix 6. Ronstar 2EC + 4.0 postemergence Paraquat + X-77 0.5 + 0.25% tank mix 7. Lexone 75% DF 0.50 preemergence 8. Lexone 75% DF + 0.50 postemergence Paraquat + X-77 0.50 + 0.25% tank mix Operation: and 7 were treatments Transplants were set 2-27-87. Middles for treatments 2, 3, 4, cultivated 3-12-87 and preemergence and postemergence herbicide were applied the same day. Summary: No observations to date. EFFECT OF 2,4-D & DICAMBA ON TOMATO AND PEPPER J. P. Gilreath Location: Block E, Lands 7-10 Objective: To determine the effect of drift concentrations of 2,4-D and dicamba on tomato and pepper. Cultivar: Sunny tomato and Mercury pepper LIST OF TREATMENTS Treatment Rate No. of No. (lb.a.i./A) applications 1. 2,4-D 0.0 1 2. 2,4-D 0.0001 1 3. 2,4-D 0.001 1 4. 2,4-D 0.01 1 5. 2,4-D 0.0001 2 6. 2,4-D 0.001 2 7. 2,4-D 0.01 2 8. DICAMBA 0.0 1 9. DICAMBA 0.0001 1 10. DICAMBA 0.001 1 11. DICAMBA 0.01 1 12. DICAMBA 0.0001 2 13. DICAMBA 0.001 2 14. DICAMBA 0.01 2 TIME OF APPLICATION: 1st APPLICATION AT BLOOM, 2nd 10 DAYS AFTER 1st. Operation: Planted 2-24-87 (tomato) and 2-26-87 (pepper). Plants will be treated with directed sprays of the indicated herbicides at the specified rates. Visual evaluations will be made for degree of injury at selected time intervals after application. Fruit will be harvested,sorted, and graded. Summary: Previous research with tomato and pepper indicated that single applications of rates of 2,4-D and dicamba (Banvel) as low as 0.0001 lb.a.i./acre produced noticeable injury to tomato foliage and pepper foliage and fruit; however, significant yield reductions were not encountered until the rate reached 0.01 lb.a.i./acre and higher. This research is designed to further document this effect and to determine if a second exposure causes any greater damage than a single application. WEED CONTROL IN PEPPER ROW MIDDLES WITH GOAL J. P. Gilreath Location: Block E, Land 17 Objective: To evaluate Goal for weed control and phytotoxicity to mulched pepper in order to provide supportive data for registration through the federal IR-4 program. Cultivar: Mercury Treatments: Treatment Rate Method of No. (Ib.a.i./A) application 1. Untreated check -- 2. Goal 1.0 pretransplant, preemergence 3. Goal 2.0 pretransplant, preemergence Operation: Transplants were set 3-13-87 one day after application of Goal treatments. Weed control and crop phytotoxicity will be evaluated during the season and yield data will be collected for each harvest. Summary: No observations. MORNINGGLORY CONTROL IN TOMATO ROW MIDDLES J. P. Gilreath Location: Block E, Land 17 South Cultivar: Sunny Objective: To evaluate promising herbicide treatments for control of morningglories in row middles of mulched tomatoes. Treatments; Treatment Rate Method of No. (lb.a.i./A) application 1. Untreated check - 2. Devrinol 2.0 posttransplant (preemergence to weeds) Blazer + AG98 0.75 + ipint/100gal postemergence 3. Lexone + Cinch 0.50 + 0.75 posttransplant (pre to weeds) 4. Probe 1.5 posttransplant (pre to weeds) 5. Probe 1.5 postemergence 6. Goal + 0.50 posttransplant Cinch 0.75 (pre to weeds) 7. Goal + 0.50 postemergence Fusilade 2000 + 0.25 tank mix Agridex 1% 8. Kerb 2.0 posttransplant (pre to weeds) Operation: Plants were transplanted 2-24-87. Middles were cultivated 3-13-87 and posttransplant, preemergence treatments were applied 3-16-87. Weed control will be evaluated several times during the season. Fruit will be harvested, sorted, and graded. Summary: Several of the herbicide treatments have been demonstrated as being effective for morningglory control in other crops, but safety to tomato plants is currently unknown. Blazer controls morningglories, but it has been both phytotoxic and nonphytotoxic to tomatoes in past research. Goal + Fusilade 2000 (tank mix) has shown promise in past research, but data are not available for morningglory control in tomatoes. CUCURBIT DISEASE EXPERIMENT J. P. Jones, J. B. Jones, C. H. Blazquez Location: Block F, Land 9 Objective: 1. Evaluate fungicides for the control of target spot of cucumber and downy mildew of muskmelon. 2. Develop target spot forecast system. 3. Develop remote sensing methods for disease detection and evaluation. Cucumber (Poinsett) Treatments Rovral Rovral Benlate Benlate Dithane M-45 Aliette Aliette Rhodax Bravo 720 Control and Rates/100 Gallons: 1.0 lb 0.75 lb 1.0 lb 0.5 lb 1.5 lb 4.0 lb 2.0 lb 3.0 lb 2.0 pt Muskmelon ( Seminole) Treatments and Rates/100 gallons: 1. 2. 3. 4. 5. 6. 7.- Aliette Aliette Aliette Rhodax Dithane M-45 Bravo 720 10. Control Results: Incomplete 4.0 2.0 1.0 3.0 1.5 2.0 I _ TENSIOMETER SCHEDULED MICRO-IRRIGATED TOMATO PRODUCTION C. D. Stanley, G. A. Clark, A. A. Csizinszky Location: Block G, Land 1 Objective: 1) Evaluate the use of tensiometer-controlled irrigation scheduling for micro-irrigation. 2) Evaluate the effect of maintaining different soil moisture levels on tomato production. Crop: Tomato, cv 'Sunny' Treatments: Soil moisture levels 1) 10 centibars 2) 20 centibars 3) 30 centibars Operation: All fertilizers were applied pre-plant in dry form, and placed in an 8-inch wide band and incorporated 3 inches. Each plot within each replication is independently controlled. Each tensiometer in each plot is checked 2 times daily by an electronic controller for a signal that irrigation is needed (by sensing a switch closure). Marketable fruit production and quality will be measured. Irrigation water application and nutrient movement in the soil will be analyzed several times during the season. SOIL BASED HYDROPONIC CULTURE C. M. Geraldson Location: Block G, Land 2 Objective: Rhizosphere composition management for soil based hydroponic culture (trickle & seepage) Crop: Tomatoes (Sunny), pepper (Gator Belle), sweet corn (Silver Queen), squash (Straight Neck), beans 191. Treatment: Trickle (bed center) Fertilizer (2 bands) + nutrients 1000 18-0-25/A nutrients 2000 18-0-25/A Evaluation: Correlation of productivity with the ionic concentration and distribution in the rhizosphere. Summary: Manipulation and control of the ionic composition of the rhizosphere using a combination trickle, gradient-hydroponic concept. EFFECT OF LIQUID PLASTIC, DRIP TUBE PLACEMENT AND PORE SPACING ON EFFICACY OF METHYL BROMIDE APPLIED VIA THE TUBE FOR A DOUBLE CROP A. J. Overman Location: Block G, Land 3 Objective: To determine the effect of a six-inch band of liquid plastic sprayed on the plastic mulch, pore spacing and tubing depth on distribution of methyl bromide prior to double cropping tomato. Crop: Tomato (Fusarium wilt race 3 resistant containerized transplants). Cucumber, cv. Dasher II. Treatments: Fumigants: 1. Control 2. Methyl bromide 98/2 300 lb/a 3. Methyl bromide + chloropicrin 67/33 350 lb/a Tube placement: (Hardie Biwall) S = 1 inch deep mid-bed D = 3 inches deep mid-bed Pore spacing: 6 = 6 inches between pores 12 = 12 inches between pores Liquid plastic spray: = no spray + = 6-inch strip of black Polysar (1.75 oz/ft2) Operation: February 5, plots were treated via the tube. February 25 tomatoes were transplanted and the cucumbers seeded. Summary: The treatments were not affected to date by the application of Polysar. EVALUATION OF VAPAM AND METHYL BROMIDE APPLIED VIA DRIP TUBE FOR DOUBLE CROP CULTURE A. J. Overman Location: Block G, Land 5 Objective: To develop a method to reduce soil pest pressure in a double crop culture. Crop: Tomato, cv. 'Sunny' and Race 3 resistant selection as containerized transplants; Cucumber, cv. 'Dasher II', seeded. Treatments: Days after Rate 1. Control 0 and 21 2. Control 3 3. Control 7 4. Vapam 0 and 21 50 gal/a 5. Vapam 3 6. Vapam 7 7. Methyl bromide 98/2 7 240 lb/a 8. Methyl bromide 98/2 14 9. M. bromide & chloropicrin 67/33 7 and 21 350 lb/a 10. M. bromide & chloropicrin 67/33 14 Operation: Fumigants were applied via the drip tube and planted on day indicated after treatment. Summary: In previous tests Vapam treatments have been planted successfully 14 days after treatment. No information has been available on methyl bromide to date; only information acquired is that MBC 67/33 will not permit transplanting 7 days after treatment. SOIL BASED HYDROPONIC CULTURE C. M. Geraldson Location: I Block Objective: Rhizosphere composition management for soil based hydroponic culture (seepage irrigation) Crop: Tomatoes (Sunny), Sweet Corn (Silver Queen) Pepper, cauliflower (Raush), Pole Bean (191) Treatment: Row Spacing 1 Seven Row, 7260 row ft, water table 18-20" 2 Two Row, 6450 row ft, water table 14-16" Fertilizer 15-0-30 18-0-25 22-0-22 (Gator Belle), (center band) 1000 and 2000 lbs/A 1000 and 2000 lbs/A 1000 and 2000 Ibs/A Evaluation: Correlate productivity with the ionic concentration and distribution in the rhizosphere. Summary: Manipulation and control of the ionic composition of the rhizosphere using a gradient-hydroponic concept. TOMATO VARIETY TRIALS T. K. Howe, J. W. Scott, W. E. Waters Location: Block J, Lands 8 and 9 Objective: To evaluate tomato varieties and advanced breeding lines. Crops: Fresh market tomato, cherry tomato Transplanted: February 19, 1987 Replicated Fresh Market Entries (4 replications, Land J 8). Duke FTE 12 All Star Sunny Horizon IFAS 7181 IFAS 7182 IFAS 7168 IFAS 7195 IFAS 7196 IFAS 7178 Floratom II Freedom Piedmont Pacific XPH 5031 Petoseed Petoseed Petoseed Asgrow GCREC GCREC GCREC GCREC GCREC GCREC GCREC Petoseed Abbott & Cobb NCSU Asgrow Asgrow Observational fresh market entries (single plots Lands J 8 and J 9): NVH 4457 NVH 4459 PSR 34683 PSR 72682 XPH 5129 XPH 5071 Hybrid 724 7193 7194 7179 7180 864309-1 864393-2 864228-2 NC 84100 NC 84100S NC 86210 NC 86250 Northrup King Northrup King Petoseed Petoseed Asgrow Asgrow Asgrow GCREC GCREC GCREC GCREC GCREC GCREC GCREC NCSU NCSU NCSU NCSU 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. NC 86250 NC 86260 NC 86263 NC 86352 NC 86355 NC 86378 NC 86378 Summer Flavor 400 Summer Flavor 5000 Summer Flavor 6000 BUX 3T649 Marquis (Hybrid 26) Roadside Red Super Red Red Express Heartland Early Girl Champion Castleking Castlecrown Florabred (Castlehy 1035) Marathon Extra Point 54X1503 85-6-133-42 Conquerer NIZ 53-1003 NIZ 53-1004 NIZ 53-1005 NIZ 53-1006 NIZ 53-1007 NIZ 53-1008 Apollo (NS 262) Taurus (NS 263) NS 266 Centinario (NS 264) NS 215 NS 265 NS 209 NS T92 Dukado Duke FTE 12 All Star Sunny Horizon 7181 7182 7168 7195 7196 7178 Floratom II Freedom NCSU NCSU NCSU NCSU NCSU NCSU NCSU Abbott & Cobb Abbott & Cobb Abbott & Cobb Burpee Harris Moran Agway Agway Agway Ball Ball Ball ARCO ARCO ARCO ARCO ARCO ARCO Zwaan-dp Zwaan-dp Zwaan-dp Zwaan-dp Zwaan-dp Zwaan-dp Zwaan-dp Neuman Neuman Neuman Neuman Neuman Neuman Neuman Neuman Brunisma Petoseed Petoseed Petoseed Asgrow GCREC GCREC GCREC GCREC GCREC GCREC GCREC Petoseed Abbott & Cobb 72. 73. 74. 75. 76. 77. 78. 79. 80. 81. 82. 83. 84. 85. 86. 87. 88. 89. 90. Piedmont Pacific XPH-5031 Summit Mountain Pride Celebrity Mistic FMX 86 FMX 79 IFAS 7164 (hot set) Count Fleet Bingo Atlantic City Hayslip Flora Dade Walter PF Florida 1B Taxi Pirate Replicated cherry tomato entries (3 replications, Land J 9) Cherry Grande NC 8642 IFAS 7166 IFAS 7201 IFAS 7202 IFAS 7203 Petoseed NCSU GCREC GCREC GCREC GCREC Operation: Replicated fresh market trial entries will be harvested at the mature green stage or beyond and sized as in commercial practice. Yields will be assessed for each harvest and for the season. Subjective evaluations will be made on fruit characteristics, plant habit and general adaptability to Florida production. Observational fresh market trial entries will not be harvested, but will be evaluated subjectively. Cherry tomato entries will be harvested for yield data and evaluated subjectively. Summary: In progress NCSU Asgrow Asgrow NCSU Petoseed Petoseed Sunseeds Ferry-Morse Ferry-Morse GCREC Ferry-Morse Ferry-Morse Ferry-Morse GCREC GCREC GCREC GCREC Johnny's Johnny's TOMATO FUSARIUM WILT RACE 3 AND FUSARIUM CROWN ROT RESISTANCE BREEDING J. W. Scott Location: Block J, Lands 11, 12 Objective: To select plants with Fusarium wilt race 3 or Fusarium crown rot resistance and good horticultural type for future variety release. Field Set: Feb. 25, 1987 Treatment: Two-hundred-eighteen breeding lines segregating for Fusarium race 3 resistance and fifty-eight breeding lines segregating for Fusarium crown rot resistance. Operation: All plants were root dip inoculated at the colyledon stage with respective pathogens. Survivors were planted to the field. Normal pesticide applications were used. When fruit begin to ripen, selections for superior horticultural type will be made. Summary: More advanced race 3 inbreds derived from Australian resistance sources are being selected for possible breeding line release. Most race 3 lines, at the BC4S1 stage, have been derived from a resistant source, LA716, which confers resistance by action of a single dominant gene. Most crown rot lines are also BC4S1's. It is hoped that selections will lead to commercially acceptable varieties in the future. EGGPLANT VARIETY TRIALS T. K. Howe, W. E. Waters Location: Block N, Land 6 Objective: To evaluate yield potential and horticultural qualities of eggplant. Crop: Eggplant. Transplanted: February 26, 1987 Replicated Trial Entries (4 replications): Florida Market Dusky Black Jack Superhybrid Epic Special Hibush Classic Black Bell Beauty Dusky Blacknite Florida Market (Cook's Strain) Florida Market 10 Satin Beauty Agora Sunseeds Burpee Agway Agway Abbott & Cobb Harris Moran Harris Moran Petoseed Petoseed Petoseed Petoseed Ferry-Morse Asgrow Petoseed Johnny's Observational Trial Entries (single plots): 1 PSX 3481 2 Easter Egg 3 Ghostbuster 4 HMX 2534 5 HMX 3536 6 Orient Express Petoseed Petoseed Harris Moran Harris Moran Harris Moran Johnny's Operation: Mature fruit will be harvested, counted and weighed. Samples of fruit will be measured for length and diameter. Yields will be assessed for each harvest and for the entire season. Fruit and plant characteristics will be documented. Summary: In progress. The spring of 1986 eggplant trial included the first fourteen entries listed for the 1987 eggplant replicated trial. In 1986, based on yield, grade-out and low cull production, 'Black Bell' 'Dusky', and 'Black Jack' were the best performers. BELL PEPPER VARIETY TRIALS T. K. Howe, W. E. Waters Location: Block N, Land 7 Objective: To evaluate yield potential and horticultural characteristics of bell varieties at the immature and mature color stages. Crop: Bell Pepper Transplanted: March 2, 1987 Replicated Trial Entries (4 replications): Trial Nos. Entry Gator Belle Bell Captain Early Calwonder Yolo Wonder L Crispy Summer Sweet Brand 860 Jupiter Memphis P-324 Marengo Olympic XPH 5489 XPH 5488 Violetta Yellona Purple Belle Summer Sweet Brand 820 Better Belle Lady Belle Green Boy Whopper Improved Golden Summer NS 21Y Bruinsma Wonder Gold Crest Color Stages Green/red Green/red Green/red Green/red Green/red Green/yellow Green/red Green/red Green/yellow Green/yellow Green/yellow Green/purple/green/red Green/yellow Green/purple/green/red Green/yellow Green/red Green/red Green/red Green/red Green/yellow Green/yellow Green/red Green/yellow 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, Observational Trial Entries (single plots): 1 P1001 2 BUX 571 3 Espadon 4 Palma 5 Lito 6 Doria 7 Novi 8 Blockbuster 9 1-BPTc-28 10 PSR 20785 11 PSR 12085 12 PSR 1483 13 PSR 17883 14 PSR 14584 15 PSR 20685 16 NS 47 17 NS 57 18 NS 63 19 NS 51 20 HMX 5661 21 HMX 6663 22 HMX 6664 23 HMX 665 24 5-BPTc-1 25 PSR 28284 Operation: The replicated trial will be harvested as immature (green or purple) or mature (yellow or red) fruit for each cultivar. Treatment numbers 1 27 indicate immature fruit harvest while treatment numbers 29 54 indicate mature fruit harvest. Samples of fruit will be measured for length and diameter. Yields will be assessed for each harvest and the entries season. Observational plots may be harvested at the immature stage only. Summary: In progress EVALUATION OF FOLIAR AND SOIL APPLIED BIOSTIMULANTS AND NUTRIENTS ON GREEN PEPPERS A. A. Csizinszky Location: Block N, Land 8 Objective: To evaluate the effect of commercially available biostimulants and plant nutrients on yield and fruit size of green peppers. Crop: Green peppers, cv. Transplanted on Feb. 11, 1987. Treatments: Foliar applied. Water control Culbac Flori-Green Booster Keyplex 350 Keyplex 350 Triggrr granular Triggrr liquid Early Calwonder (1) and Jupiter (2). (4x) (Ix at 8 fl oz/A) (4x at 1 gal/A) (3x at lqt/A) (6x at Ipt/A) Soil applied (pre-plant) (5 lb/A) (20 fl oz/A) Operation: Plants will be treated according to manufacturer's recommendation. Leaf samples will be analyzed three times, soil samples two times, and fruit samples one time for ion and mineral concentrations. At harvest, fruit will be sorted into marketable and cull, then marketable fruit will be size graded. Summary: These products have not yet been evaluated at the GCREC on peppers, therefore little is known of their effect on this crop. EVALUATION OF FOLIAR AND SOIL APPLIED BIOSTIMULANTS AND NUTRIENTS ON TOMATO A. A. Csizinszky Location: Block N, Land 8 Objective: To evaluate the effect of and plant nutrients on yield and fruit commercially available biostimulants size of tomato. Crop: Tomato, cv. Sunny, transplanted on Feb. 11, 1987. Treatments: Foliar applied. Water control Culbac Flori-Green Booster Keyplex 350 Keyplex 350 Triggrr granular Triggrr liquid (4x) (Ix at 8 fl oz/A) (4x at 1 gal/A) (3x at 1 qt/A) (6x at 1 pt/A) Soil applied (pre-plant) (5 Ib/A) (15 fl oz/A) Operation: Plants will be treated according to manufacturer's recommendations. Leaf samples will be analyzed three times, soil samples two times, and fruit samples one time for ion and mineral concentrations. At harvest, fruit will be sorted into marketable and cull, then marketable fruit will be size graded. Summary: In previous experiments at was evaluated on tomatoes for four other biostimulants is not known. GCREC, only Keyplex 350 (3x at lqt/A) consecutive seasons. The effect of INHERITANCE OF RESISTANCE TO BACTERIAL SOFT ROT PHASE I J. A. Bartz, J. W. Scott Location: Block N, Land 9 Field Set: February 17, 1987 Objective: To determine the genetic control of bacterial soft rot resistance in tomato. Treatment: Field Designation E201s E202s E203s E204s E205s E206s Pedigree Generation Fla. MH-1 P1 Horizon P2 Horizon x MH-1 Fl MH-1 x Horizon RF1 (Horizon x MH-1) BK F2 MH-1 (Horizon x MH-1) BCP1 Operation: Normal pesticide practices were used. Fruit are harvested at the mature green stage, weighed and submerged in water under pressure for a short time period. They are then weighed to measure water uptake. Summary: Bacterial soft rot, incited by Erwinia sp., is one of the major causes of postharvest decay in Florida tomatoes. Fruit are infected in contaminated wash tanks where fruit which take up more water also take up more bacteria. Past work has shown that Fla. MH-1 is susceptible to Erwinia due to its high water uptake. Horizon has low water uptake and is quite resistant. In this study we hope to see where the Fl falls and gain some information on how to sample F2 and backcross generations. This experiment will then be expanded in the future. GENOTYPE EVALUATION OF FIRMNESS AND TEXTURAL COMPONENTS IN TOMATO Joe Ahrens, J. W. Scott, D. J. Huber Location: Block N, Land 9 Objective: To determine firmness of whole fruit and component parts and to assess texture for various genotypes. Field Set: February 17, 1987 Treatment: 3 replications, 10 plant plots Field Designation Pedigree E101 Rutgers E102 Sunny E103 Suncoast E104 Fla 7136 E105 Fla MH-1 E106 Fla 7155 E107 Flora-Dade E108 Angora Operation: Normal pesticide practices were used. Fruit of each variety were/will be harvested at the mature green stage and tested for firmness and texture at the table ripe stage. Various means will be used to measure firmness (Cornell pressure tester, Instron of radial and outer walls, M-T peel puncture). Trained taste panelists will rate fruit for texture. Summary: In this experiment we are trying to find 4 genotypes; firm and mealy, firm and not mealy, soft and mealy, soft and not mealy. We hope then to chemically identify some of the components of each genotype and possibly study the inheritance of firmness and mealyness. TOMATO FUSARIUM WILT RACE ASSOCIATION PHASE 1 Brian Bournival, J. W. Scott Location: Block N, Land 9, 10 Objective: To determine if race 3 resistance is linked, allelic, or assorts independently from race 2 and race 1 resistance. Field Set: February 17, 1987; March 10, 1987, E305 set March 18, 1987 Treatment: Field Designation Pedigree Generation E 301s Bonny Best (Bonny Best x LA 716) BCP1 E 302s (Bonny Best x LA 716)-BK F2 E 303s Bonny Best (Bonny Best x E 427) BCP1 E 304s (Bonny Best x E 427)-BK F2 E 305s Bonny Best (Bonny Best x LA 716) BCP1 Operation: Normal pesticides were used. Selfed seed will be saved from each of the plants. Each of these selections will then be screened separately for resistance to Fusarium wilt race 1, race 2, and race 3 to see if the resistances are associated or assort independently. Summary: Race 3 resistance derived from LA 716 is conferred by a single dominant gene as has been reported earlier for races 1 and 2. LA 716 is also resistant to races 1 and 2. This is part of an overall study to find the location of the race 3 gene (13) on the linkage map. This study will provide evidence for the relationship of these resistance genes. DEVELOPMENT OF THE IDEAL PLANT HABIT FOR GROUND TOMATOES J. W. Scott Location: Block N, Land 12 Objective: To select plants with adequate fruit cover for production without stakes. Field Set: February 17, 1987 Treatment: Sixteen breeding lines and controls. Most breeding lines at the BC2 Sl stage. Operation: Normal pesticide practices were used. Plants were selected early on for ideal plant habits. Later they will be selected for superior horticultural type. Summary: Work in Israel indicated plants with multiple branching and short internodes cover plastic mulch well without blowing to one side for maximal photosynthesis. They also cover fruit well to prevent sunburn. This work is to see if such types can be selected for Florida. Thus an alternative to staking the plants might be possible. Work is still in the early phases. BREEDING MALE-STERILE TOMATOES J. W. Scott Location: Block N, Land 13 Field Set: February 24, 1987 Treatment: Ninety-seven breeding lines and controls. Operation: Male-sterile segregants are flagged and rated for stigma exposure which will facilitate cross-pollination. Fertile plants are rated for stigma position and horticultural type. Sib pollinations are made on superior types. Summary: Most commercial acreages of tomatoes in Florida are planted with hybrid varieties. Cost of such varieties could be reduced and availability of seed increased if male-steriles could be used as parents for these varieties. This work is intended to develop commercially acceptable fresh market and cherry steriles for this purpose. Emphasis is being placed on incorporation of a seedling marker and an enzyme marker. These markers will enable seedsmen to identify sterile and fertile plants for seed production plots. BREEDING PARTHENOCARPIC TOMATOES J. W. Scott Location: Block N, Land 14 Field Set: February 24, 1987 Treatment: Fifty-four breeding lines and controls. Operation: Flowers of each plant are planted on a tissue culture medium and scored for growth which indicates presence of parthenocarpy. Ripe fruit are later cut to verify parthenocarpic expression. Selections are made for plants with parthenocarpy and good horticultural type. Summary: Fruit set during periods of stress to cold, heat, or rain could theoretically be enhanced by production of parthenocarpic (seedless) fruit. These fruit have normal gel fill but do not require fertilization which might be a limiting step in the fruit set process under stress conditions. Progress has been slow on this project but attempts to obtain large fruited parthenocarpic lines is underway here. TOMATO BACTERIAL WILT RESISTANCE BREEDING J. W. Scott, J. B. Jones, G. E. Cameron Location: Block N, Lands 15, 16 Field Set: Feb. 24, 1987 and Feb. 26 (extra plants) Objective: To select plants with bacterial wilt resistance and good horticultural type for future variety release. Treatment: Eighty breeding lines (Most BC3SL's) plus controls. Operation: Roots of thirty-two day old plants were cut in Speedling (size #i50) trays and a 5 ml suspension of Pseudomonas solanacearum (108 cfu/ml) was poured into each cut area. Plants were then transplanted in the field at 6" spacing. Seeds from resistant plants of each line with better horticultural type will be bulked for rescreening next season. Summary: It is hoped that selections will have enough horticultural type to eventually lead to acceptable commercial varieties. RELATIONSHIP BETWEEN BACTERIAL SPOT AND BACTERIAL WILT RESISTANCE IN TOMATO J. W. Scott, G. E. Cameron, J. B. Jones Location: Block J, Land 16 Field Set: March 9, 1987 Objective: To determine if there is an association between bacterial spot resistance and bacterial wilt resistance. Treatment: Thirty-one bacterial spot resistant breeding lines and control lines Hawaii 7997, Hawaii 7998, Campbell-28, and Walter. Operation: Roots of 34 day old plants were cut in Speedling (size #150) trays and a 5 ml suspension of Pseudomonas solanacearum (108 cfu/ml), causal agent of bacterial wilt, was poured into each cut area. Plants were transplanted to the field and will be rated for bacterial wilt on a weekly basis once symptoms begin to appear. Summary: This is one of a series of experiments we are conducting to see if there is an association of these disease resistances. We know bacterial wilt resistance does not confer bacterial spot resistance, but it may be that bacterial wilt resistance is needed for bacterial spot resistance to occur. Our bacterial spot resistant source, Hawaii 7998, is a bacterial wilt resistant accession. If there is an association, then a high percentage of the lines selected only for bacterial spot resistance should also be bacterial wilt resistant. SWEET CORN VARIETY TRIAL T. K. Howe, W. E. Waters Location: Block N, Land 18 Objective: To evaluate supersweet sweet corn varieties and breeding lines in replicated trial. Crop: Supersweet (shrunken-2 genotype) sweet corn. Direct Seeded: April 15, 1987 Trial Entries: Field will be marked. Operation: Ears will be hand harvested as needed for each cultivar. Comparisons of yields, earliness, concentration of harvest and ear characteristics will be assessed. Summary: In progress. Harvest in early June. ACKNOWLEDGEMENT OF INDUSTRY FOR THE RESEARCH PROGRAMS AT THE GULF COAST RESEARCH AND EDUCATION CENTER, BRADENTON, FLORIDA The effectiveness of the research programs at the Gulf Coast Research and Education Center in Bradenton has been greatly enhanced by the excellent support from the various segments of the agri-business industries and producers, both locally and nationally. This support in the form of financial grants-in-aid, products and services, or equipment, supplements existing state funds and makes each research project at the Center far more productive than could otherwise be realized. We sincerely appreciate your participation in these research programs and are pleased to acknowledge your support. Listed below are the names of agencies, firms or individuals who have contributed significantly to the research programs during the past two years. We trust that our records are complete and say again, "Thank you for your confidence." 1985-87 Abbott & Cobb, Inc. Abbott Laboratories Agtrol Chemical Products American Florists Endowment Artesian Farms Asgrow-Florida Co. Asgrow Seed (Upjohn) BASF Wyandotte Corp. Ball Pan American Seed Co. Ball Seed Bates, Donald Bear Hollow Bulb Farms Bedding Plants Foundation, Inc. Brock Farms, Inc. Burst Agritech Capella Farms Chapin Watermatics Chevron Chemical Co. Chemical Dynamics, Inc. Chilean Nitrate Sales Corp. CIBA-GEIGY Cities Service Co. Dimare Farms Dow Chemical, USA A. Duda & Sons, Inc. DUPONT de Nemours & Co., Inc. Ecke Poinsettias Elsberry Farms, Inc. Elsberry Greenhouses FMC Corporation Favorite Farms, Inc. Fermenta Plant Protection Florida Celery Exchange Feasterville, PA North Chicago, IL Houston, TX Edwardsville, IL Ruskin, FL Plant City, FL Kalamazoo, MI Parsippany, NJ West Chicago, IL West Chicago, IL Lake Placid, FL Lake Placid, FL Lansing, MI Plant City, FL Oakland Park, KS Pompano Beach, FL Watertown, NY San Francisco, CA Plant City, FL Norfolk, VA Greensboro, NC Atlanta, GA Homestead, FL Midland, MI Belle Glade, FL Wilmington, DE Encinitas, CA Ruskin, FL Ruskin, FL New York, NY Dover, FL Albany, GA Orlando, FL Florida FLower Association Florida Foundation Seed Producers, Inc. Florida Ornamental Growers Assoc., Inc. Florida Strawberry Growers Assoc., Inc. Florida Tomato Exchange Four Star Tomato Inc. Fran Berry Farm Fred C. Gloeckner Foundation, Inc. Grand Cayman Island Vegetables, Ltd. Great Lakes Chemical Co. HMS Soil Fumigant, Inc. Happiness Farms, Inc. Hardee Irrigation Harllee Farms Harllee-Gargiulo, Inc. Harris Moran Seed Co. Healy & Associates Hendry Irrigation Hoechst-Roussel Agri-Vet Co. Hunsader Brothers ICI Americas, Inc. L&B Farms Liewald Nursery Mallinkrodt Chemical Manatee Fruit Company McDonald Produce, Inc. Melamine Chemicals, Inc. Merck, Sharpe & Dohme Mobay Chemical Corp. Monsanto Agriculturals Products Morse Enterprises Netafim Irrigation NOR-AM Chemical Co. Northrup King Seed Company Nourse Farms, Inc. Orbans Nursery, Inc. PPG Industries Pan American Plant Company Parkesdale Farms, Inc. Petoseed Co., Inc. Plants, Inc. of Sarasota Plants of Ruskin Polysar Limited Producers Fertilizer Co. Reasoner's Tropical Nurseries, Inc. Rhone-Poulenc Chemical Co. Rohm & Haas Company Sandoz Corp. SDS Biotech Schwartz Farms Shackleford Farms SHARE Program Shell Development Company Ft. Myers, FL Greenwood, FL Alva, FL Plant City, FL Orlando, FL Ellenton, FL Dover, FL New York, NY Grand Cayman British West Indies West Lafayette, IN Palmetto, FL Lake Placid, FL Winter Park, FL Palmetto, FL Palmetto, FL Rochester, NY Crown Point, IN Labelle, FL Somerville, NJ Bradenton, FL Wilmington, DE Bradenton, FL Palmetto, FL St. Louis, MO Palmetto, FL Plant City, FL Donaldsonville, LA Rahway, NJ Kansas City, MO St. Louis, MO Miami, FL Valley Stream, NY Wilmington, DE Gilroy, CA South Deerfield, MA Bradenton, FL Pittsburgh, PA Parrish, FL Plant City, FL Saticoy, CA Sarasota, FL Ruskin, FL Chatenooga, TN Palmetto, FL Oneco, FL New Brunswick, NJ Philadelphia, PA Hanover, NJ Plainesville, OH Sarasota, FL Parrish, FL Gainesville, FL Modesto, CA Sierra Chemical Sizemore Farms, Inc. Southern Agricultural Chemicals Co. Southwest Florida Water Management Dist. Speedling Inc. Stauffer Chemical Company Strano Brothers, Inc. Sun Seeds Taylor & Fulton Greenhouses The Plant Farm Trans Agra International Tropicana Products Union Carbide Agri. Products, Inc. Union Oil Uniroyal Chemical Company Universal Enterprises United Agricultural Products USDA-ARS-DSR IR-4 Project USDA-US-Israel Binational Agric. Res. & Development Fund (BARD) USDA-Tropical & Subtropical Agri. USDA-Horticultural Sci. Institute W. F. Farms, Inc. Westbridge Agricultural Products West Coast Packing Co. Whisenant Farms Williford Farms Yoder Brothers Zoecom Research Institute Milpitas, CA Plant City, FL Rubonia, FL Brooksville, FL Sun City, FL San Francisco, CA Homestead, FL Hollister, CA Ellenton, FL Sarasota, FL Eads, TN Bradenton, FL Research Triangle Park, NC Los Angeles, CA Middlebury, CT Sarasota, FL Greely, CO New Brunswick, NJ Beltsville, MD Washington, D.C. Beltsville, MD Plant City, FL San Diego, CA Palmetto, FL Parrish, FL Ruskin, FL Ft. Myers, FL Palo Alto, CA S".92' .275." " 1- .ternat on AA PA -574- DOVER ST. PE ERS UR4 ;: Rd.01 S ee Ave. Morgan-Johnson CLE WAT E v0 r? GULF 1 301 STOF5 Rd. Bus.301 M EXIC301 A o LOCATION OF G. C. R. E. C. aSarasota Bradenton v e' __-J'son G L F BRADENTON FLORIDA 1 E I301 S D Ol -70 301o LOCATION OF G. Q R. E. C. Airport BRADENTON FLORIDA 1 INCH 5 MILES ,\\ :IW_WOTA |