A Vegetable Crops Extension Publication
Horticultural Scienccs Department P.O. 110690 Gainesvillc, FL 32611 Telephone 904/392-2134
November 21, 1995
L NOTES OF INTEREST
A. Vegetable Crops Calendar
HI. PESTICIDE UPDATE
A. EPA Announces Revised Pesticide Tolerance Crop
III. COMMERCIAL VEGETABLES
B. Compost Symposium.
IV. VEGETABLE GARDENING
[ A. Herbs for Fall/Winter Planting in the Garden.
Note: Anyone is free to use the information in this newsletter.
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trade names in this publication is solely for the purpose of providing
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/ UNIVERSITY OF Cooperative Extension Service
S.FLORIDA Institute of Food and Agricultural Sciences
I. NOTES OF INTEREST
A. Vegetable Crops Calendar.
January 17, 1996. Compost
Symposium 9:00 AM 3:00 PM.
Southwest Fla. REC, State Rd. 29 N,
Immokalee, FL. Contact Charlie Vavrina.
March 7-14, 1996. Florida
Postharvest Horticulture Institute and
Industry Tour. Contact Steve Sargent,
1L PESTICIDE UPDATE
A. EPA Announces Revised
Pesticide Tolerance Crop Grouping
On Wednesday, 17 May 95, the
Federal Register announced EPA's approval
of revised pesticide tolerance crop-grouping
regulations. The new regulations will create
new crop subgroups, expand existing crop
groups by adding new commodities, and
revise the representative crops in some
The idea of using crop groupings to
establish a group tolerance is not a new one.
IR-4 has worked closely with FDA in the
late 1960's and with EPA since the early
1970's to develop crop grouping regulations
that would promote a safe, scientifically
sound, and more cost-effective avenue for
establishing minor crop tolerances. "These
latest regulations are a victory for minor
crop growers," said Richard Guest, National
Director of the IR-4 Project.
Crop groupings allow for maximum
pesticide residues to be based on
representative crops within a group of crops
that are very botanically and culturally
similar. This eliminates much costly and
redundant research. "Increasing reliance
upon crop grouping for setting tolerances
will help to increase the availability of pest
control agents, including IPM materials, for
minor or specialty crop uses," explains
George Markle, IR-4 Associate Director.
The latest revision approvals create
smaller subgroupings that can be supported
by residue data from fewer representative
crops. Since the residue data can be
obtained from fewer but more representative
research studies, this new alternative will
reduce the cost of developing residue data to
support the registration and reregistration of
many minor uses while continuing to provide
the consumer with safe and nutritious
domestically grown commodities.
IR-4 played a major role in several of
the specific revisions to crop groups,
especially the subgroups. Examples of these
Crop Group 1: Root and Tuber Vegetables
Oriental radish replaces Japanese
radish. Japanese radish is now part
of the expanded Oriental radish
Chayote root has been added to the
root and tuber vegetables group and
to subgroups 1-C and 1-D.
Crop Group 3: Bulb Vegetables
Residue data only required for
green and dry bulb onions.
Crop Group 4: Leafy Vegetables (except
Cardoon and Chinese celery have
been added to crop group 4 and
subgroup 4-B, leaf petioles.
Florence fennel has been expanded
to include the name finocchio.
Crop Group 5: Brassica (Cole) Leafy
Mizuna and mustard spinach have
been added to the crop group and to
subgroup 5-B, leafy Brassica greens
Crop Group 13: Berries
The bushberry subgroup includes
woody shrubs and bushes that
produce fruit in clusters, including
Blackberries are included in
subgroup 13-A with other
Youngberry has been added to
blackberry since it is a blackberry-
raspberry hybrid similar to
boysenberry and marionberry, which
are included with blackberry.
OUTLINE OF LATEST EPA CROP GROUPS
40 CFR 180.41
1. Root & Tuber Vegetables [Carrot, Potato, Radish, & Sugar Beet]
A. Root Vegetables [Carrot, Radish, & Sugar Beet]
B. Root Vegetables (Except Sugar Beet) [Carrot, & Radish]
C. Tuberous and Corm Vegetables [Potato]
D. Tuberous and Corm Vegetables (Except Potato) [Sweet Potato]
2. Leaves of Root and Tuber Vegetables [Turnip & Garden Beet 'or' Sugar Beet]
3. Bulb Vegetables (Allium spp) [Green Onion, & Dry Bulb Onion]
4. Leafy Vegetables (Except Brassica Vegetables) [Celery, Head Lettuce, Leaf Lettuce, &
A. Leafy greens [Head lettuce, Leaf Lettuce, & Spinach]
B. Leaf Petioles [Celery]
5. Brassica (Cole) Leafy Vegetables [Broccoli 'or' Cauliflower, Cabbage, & Mustard Greens]
A. Head and stem Brassica [Broccoli 'or' Cauliflower, & Cabbage]
B. Leafy Brassica greens [Mustard Greens]
6. Legume Vegetables (Succulent or Dried) [Bean (Succulent & Dried), Pea (Succulent &
Dried), & Soybean]
A. Edible Podded legume vegetables [Edible-Podded Bean & Edible-Podded Pea]
B. Succulent shelled pea and bean [Succulent Shelled Bean & Garden Pea]
C. Dried shelled pea and bean [Dried Bean & Dried Pea]
7. Foliage of Legume Vegetables [Bean, Field Pea, & Soybean]
8. Fruiting Vegetables (Except Cucurbits) [Tomato, Bell Pepper, & Non-Bell Pepper]
9. Cucurbit Vegetables [Cucumber, Muskmelon, & Summer Squash]
A. Melon [Cantaloupe]
B. Squash/Cucumber [Cucumber, & Summer Squash]
10. Citrus Fruits [Sweet Orange, Lemon, & grapefruit]
11. Pome Fruits [Apple, & Pear]
12. Stone Fruits [Sweet 'or' Tart Cherry, Peach, & Plum 'or' Fresh Prune]
13. Berries [Blackberry 'or' Raspberry, & Blueberry]
A. Caneberry [Blackberry 'or' Raspberry]
B. Bushberry [Highbush Blueberry]
14. Tree Nuts [Almond, & Pecan]
15. Cereal Grains [Sweet Corn, Field Corn, Rice, Sorghum, & Wheat]
16. Forage, Fodder and Straw of Cereal Grains [Corn, Wheat, & any other Cereal Grain Crop]
17. Grass Forage, Fodder, and Hay Group [Bermuda Grass, Blue Grass, & Brome Grass 'or'
18. Nongrass Animal Feeds (Forage, Fodder, Straw and Hay) [Alfalfa, & Clover]
19. Herbs and Spices [Fresh Basil, Dried Basil, Black Pepper, Chive, & Celery Seed 'or' Dill
A. Herb [Fresh Basil, Dried Basil, & Chive]
B. Spice [Black Pepper, & Celery Seed 'or' Dill Seed]
[Representative Crop(s) for Groups or Subgroups]
Extracted from IR-4 newsletter 26:2
(Stall, Vegetarian 11-95)
III. COMMERCIAL VEGETABLES
A. Compost Symposium Program.
January 17, 1996
9:00 AM 3:00 PM
Southwest Florida Research & Education Center
State Road 29 N, Immokalee FL
Moderator: Charlie Vavrina, Vegetable Horticulturist, SWFREC
9:00 What are composts? Tom Obreza, SWFREC
9:20 Suppression of plant diseases by composts Harry Hoitink, Plant Pathology, Ohio State
9:50 Chemical composition of composts Don Graetz, UF, Gainesville.
10:10 Compost usage with woody ornamentals George Fitzpatrick, FLREC.
10:30 Compost usage with bedding plants Kim Klock, FLREC.
10:50 MSW composts for biocontrol of Phytophthora root rot in citrus Jim Graham, Citrus
11:10 Compost usage in turf- John Cisar, FLREC.
Lunch Sponsored by Bedminister Bioconversion Corp.
Moderator: Tom Obreza, Soil Science, SWFREC
1:00 Compost usage in the vegetable transplant industry Charlie Vavrina, SWFREC.
1:20 Composts for weed control in vegetable crops Monica Ozores-Hampton,
Grad. Student UF.
1:40 Composts in vegetable production Peter Stoffella, IRREC.
2:00 Heavy metal accumulation in vegetables grown in compost Herb Bryan, TREC.
2:20 Effectiveness of compost in drip irrigated vegetables Craig Stanley, GCREC.
(Vavrina, Vegetarian 11-95)
R.S.V.P. Compost Symposium
Will you attend the lunch? Yes No
(Please respond by January 10, 1996 to C. Vavrina, SW Fla REC, Immokalee)
IV. VEGETABLE GARDENING
A. Herbs for Fall/Winter
Planting in the Garden.
While Spring is the favorite time of
the year to start herbs in Florida, there are
many that can be propagated in the fall and
early winter months. One of our best
growers of herbs and authority on this group
of plants is Barbara Daniels of Duval
County. Barbara works with the
Jacksonville Urban Gardening program
where herbs are grown in demonstration
gardens and in several of the city-wide
According to Barbara, "There is
plenty of time in November for planting
herbs. Due to the possibility of heavy rains,
it is always a good idea to build rows or
mounds for your herbs just as you would do
for your vegetable garden. You can direct
seed dill, cilantro, arugula, borage, burnet,
chervil, chives, fennel, parsley, sage,
marjoram, and thyme. Some of the very tiny
seeds like marjoram and thyme are best
started in 2-inch pots and then transplanted.
Remember, it is important to space herbs
correctly, so be light-handed when planting
seeds directly into the garden, and thin the
seedlings to proper stand. Garlic is another
herb that can be planted now. Buy the bulbs
and break them apart into segments called
cloves. Place each clove on its side about 4
inches apart in a well prepared soil. Garlic
will be ready for harvest in May."
Barbara wishes to pass on a recipe
for insect spraying which she obtained from
the USDA, as follows:
1 tblspoon dishwashing detergent
1 cup oil (peanut, vegetable, sunflower, etc)
From this cup of concentrate, mix 2 tsps to 1
cup of water and use as needed.
The following table was prepared by J. M.
Stephens for general herb growing.
TABLE 1. HERB PROPAGATION INFORMATION FOR THE FLORIDA GARDEN.
Herb Cycle Propagation Spacing Used Harvest
(Stephens, Vegetarian 11-95)
Prepared by Extension Vegetable Crops Specialists
Dr. D. J. Cantliffe
Dr. S. M. Olson
Mr. J. M. Stephens
Professor & Editor
Dr. G. J. Hochmuth
Dr. S. A. Sargent
Dr. C. S. Vavrina
Dr. D. N. Maynard
Dr. W. M. Stall
Dr. J. M. White