UNIVERSITY OF Cooperative Extension Service
FLORIDA Institute of Food and Agricultural Sciences
A Vegetable Crops Extension Publication
Horticultural sciences Department P.O. 110690 Gaineaville, FL 32611 Telephone 904/392-2134
November 18, 1997
1. NOTES OF INTEREST
A. Vegetable Crops Calendar.
B. Vegetarian Author Procedures.
II. COMMERCIAL VEGETABLES
A. Calculating Free Chlorine Concentration for Water
B. Suwannee Valley Field and Greenhouse Grower's
Shortcourse and Trade Show.
C. Watermelon Variety Evaluation, Spring 1997.
IIl. PESTICIDE UPDATE
A. Pelargonic Acid (Scythe Herbicide) Labeled on Many
Note: Anyone is free to use the information in this newsletter. Whenever
possible, please give credit to the authors. The purpose of trade names
in this publication is solely for the purpose of providing information and
does not necessarily constitute a recommendation of the product.
The Institute of Food and Agricultural Sciences is an Equal Employment Opportunity Affirmative Action Employer authorized to provide research, educational
information and other services only to individuals and institutions that function without regard to race, color, sex, age, handicap or national origin.
f/' rnrn A& qiT vrr tkr Ia Tf flV IkT A 'fl? TT TT T1 1 P t 1J,' 41r7f te r A f'i ,%?' % rSr e- Tr r n tr-ufrra ,- c -ntr.
I. NOTES OF INTEREST
A. Vegetable Crops Calendar.
February 18-21,1998. American Society
for Plasticulture 27th Congress, Tucson, Arizona.
Contact Bob Hochmuth, Suwannee Valley REC,
March 9-13,1998. Florida Postharvest
Horticulture Institute and Industry Tour. Contact
Steve Sargent, UF, (352) 392-2134 ext. 215.
B. Vegetarian Author Procedures
On October 22, we had a conference call
among several specialists to discuss the recent
Vegetarian Survey. Concerns and desires of the
agents for the Vegetarian were addressed and a
plan to revise and strengthen the newsletter was
Specifically, the Vegetarian format will
stay the same for the hard copy version, at least
forthe upcoming year. We will however, be trying
to provide an electronic version to the agents as
well. If this goes well, we might pull the hardcopy
The responses of the agents to the survey
questions on topics will be addressed by making
every effort to cover all topics at least once in
We will have a set authoring schedule for
each issue to ensure that each issue is full of
good information. Each specialist will have
several months for their contributions, but
everyone could contribute more. Also several
agents volunteered to write and they will be
included in the schedule. Hopefully, these
changes will strengthen the Vegetarian and
increase its usefullness. This process will start
with the January 1998 issue. So, be on the
lookout for a better Vegetarian and give us some
(Hochmuth, Vegetarian 97-11)
II. COMMERCIAL VEGETABLES
A. Calculating Free Chlorine
Concentration for Water Tanks.
Whenever water is re-circulated in
packinghouses, plant pathogens (and potentially
human pathogens) present on the in-coming
produce will accumulate in the water of
components such as dump tanks and
hydrocoolers. Without effective sanitization of the
water, the inoculum load increases to the point
that sound fruit can be infected, increasing the
incidence of postharvest decay. Free chlorine is
an effective sanitizer for these situations when
used correctly and it is one of the few products
which can be legally applied postharvest to fruits
and vegetables. Free chlorine is quite
unstable however, and its efficacy is reduced by
a number of conditions in the water, including pH,
temperature, amount of organic matter and
pathogen load; exposure time is also important.
The free chlorine concentration should be
monitored regularly during use and adjusted to
maintain a minimum of 100 to 150 ppm at all
times. Jerry Bartz and I described the conditions
necessary for effective sanitation of re-used water
in the November 1994 issue of the Vegetarian.
Other information is available in the Vegetable
Crops Fact Sheets VC-1 and VC-31.
A) Determining the amount of bleach to
add to water tanks.
Throughout the year I receive numerous
requests for instructions on how to easily calculate
the amount of sodium hypochlorite necessary for
commercial water tanks. Below is a table which
can be used to determine the amount of
household bleach necessary to achieve 100 and
150 ppm of free chlorine in solution. Bleach
usually contains 5.25% sodium hypochlorite:
check the label on the container. (Note that in the
following calculations I have assumed that 100%
of the sodium hypochlorite is available as free
chlorine. Values have been rounded for ease of
Amount of bleach (5.25% sodium hypochlorite) to add for recommended concentrations of free
T 100 ppm 150 ppm
Tbsp/gallon 1.0 1.5
Gallons/1000 gallons 4 6
For example, to make up a mixture of 100 ppm free chlorine in a 1000-gallon tank, add 4 gallons of
bleach to the tank and bring up the final volume by adding 996 gallons water.
B) Determining the amount of other liquid chlorine sources to add to water tanks.
Chlorine sources are often used which are more concentrated than household bleach. Below is a
brief procedure to determine the amount of sanitizer to add for sources containing concentrations
other than 5.25% sodium hypochlorite.
1) Convert from % sodium hypochlorite in the source to parts per million:
% sodium hypochlorite in source X 10,000 = ppm chlorine in source
2) Determine amount of the source to be added to the total volume:
Amount of source to add = Desired ppm free chlorine X total volume in tank
ppm chlorine in source
3) Add calculated amount of source to tank; bring up to final volume with water
For example, let's assume that we wish to have the recommended 150 ppm free chlorine in a 500-
gallon dump tank. The chlorine solution that we purchased contains 12% sodium hypochlorite.
The amount of source solution to add to the tank would be determined as follows:
1) Convert to ppm: 12% X 10.000 ppm = 120,000 ppm chlorine
2) Amount of source to add = 150 ppm X 500 gallons
= 0.6 gallons of source + 499.4 gallons water = 500 gallons total solution
(This formula will work for any unit, as long as the units for the source
and final solution are the same.)
I would like to thank Ms. Abbie Fox, Biological Scientist, for her assistance in preparing this report.
(Sargent, Vegetarian 97-11)
B. Suwannee Valley Field and Greenhouse Grower's Shortcourse and Trade Show.
Saturday, January 10, 1998
Suwannee County Coliseum
Live Oak, FL
8:00 a.m. Registration and Trade Show (coffee and donuts)
9:00 a.m. Combined Opening Session
10:00 a.m. Morning Concurrent Sessions (choose one)
Field Vegetable Session or Alternative Crops Session
12:00-1:00 p.m. Lunch and Trade Show
1:00 p.m. Afternoon Concurrent Sessions (choose one)
Greenhouse Transplant Production Session or Alternative Crops Session
2:30 p.m. Adjournment for Shortcourse and Trade Show
3:00-5:00 p.m. Suwannee Valley Research and Education Center Field and Greenhouse Crops Open House and
Combined Opening Session
Exhibition II Building
January 10, 1998
Moderator Michael Sweat, Baker Co. Ext. Dir., UF, IFAS, MacClenny, FL
9:00 a.m. Welcome Suwannee County Commission
9:05 a.m. Introductory Remarks, Rod Clouser, District II Ext. Dir., UF, IFAS, Gainesville, FL
9:15 a.m. Nitrates in the Suwannee River Water Management District
David Hornsby, Water Quality Analyst, SRWM District, Live Oak, FL
9:35 a.m. Nitrogen Management Programs, Rich Budell, Asst. Dir., Div. of Environmental Services., Fla Dept.
of Agriculture & Consumer Services, Tallahassee, FL
9:55 a.m. Adjourn
Field Vegetable Session
Exhibition II Building
Moderator: Jim Fletcher, Madison, Co. Ext. Dir, UF, IFAS, Madison, FL
10:00 a.m. Farm Labor and Workmen Compensation Issues
Reggie Brown, Director of Marketing and Membership, FFVA, Orlando, FL
10:20 a.m. Vegetable Crops Variety Update, Don Maynard, Ext. Veg. Spec., GCREC, UF,
IFAS, Bradenton, FL
10:50 a.m. Cabbage, Collards, and Other Cole Crops in No. Fla., George Hochmuth, Ext. Veg. Spec., & Bill
Stall, Ext. Veg. Spec., Hort. Sci. Dept., UF, IFAS, Gainesville, FL
11:20 a.m. Snap Bean Production and Pests
George Hochmuth, Ext. Veg. Spec., & Bill Stall, Ext. Veg. Spec.,
Hort. Sci. Dept., UF, IFAS, Gainesville, FL
12:00 p.m. Adjourn
Greenhouse Transplant Production Session
Exhibition II Building
Moderator: Bill Thomas, Columbia Co. Ext. Dir.,UF, IFAS, Lake City, FL
1:00 p.m. Transplant Topics A Z
Production Systems, Media Selection, Trays and Containers, Seeding Techniques,
Plant Fertilization, Environmental Controls, Sanitation
Charles Vavrina, Ext. Veg. Spec., SW Fla REC, UF, IFAS, Immokalee, FL
2:30 p.m. Adjourn
Alternative Crop Session (A.M.)
Extension Conference Room
Moderator Gary Brinen, Alachua Co. Ext. Agent, UF, IFAS, Gainesville, FL
10:00 a.m. Markets and Marketing for Alternative Crops
Bob Degner, Program Director, Market Research, Food and Resource Economics Department,
University of Florida, IFAS, Gainesville, FL
10:40 a.m. Experiences with Successful Local Marketing
Gary Brinen, Alachua Co. Ext. Agent, UF, IFAS, Gainesville, FL
Watermelon Variety n
Standard seeded watermelons weigh from
18 to 35 Ib and represent most of the commercial
crop grown in Florida. Icebox watermelons weigh
6 to 12 Ib each and are grown on a small acreage.
Seedless watermelons, weighing 12 to 18 Ib, also
are grown in Florida on a limited scale. Florida
produced 7.14 million cwt of watermelons of all
types from 34,000 harvested acres in 1995-96
which provided an average yield of 210 cwt/acre.
The average price was $7.00/cwt resulting in a
crop value of almost $50 million which accounted
for 3.4% of the gross value of the state's
Until recently, the Florida crop was about
equally divided among 'Crimson Sweet',
'Charleston Gray', and 'Jubilee' types. A
noticeable decline in 'Charleston Gray' and
'Jubilee' production has been replaced largely by
increases in production of 'Allsweet' and blocky
'Crimson Sweet' types. In addition, hybrids have
replaced open-pollinated varieties in most
The purpose of this trial was to evaluate
some of the recently introduced commercial and
experimental hybrids of the blocky 'Crimson
Sweet' and 'Allsweet' types.
The EauGallie fine sand was prepared in
late January by incorporation of 0-1.2-0 Ib N-P20,-
K20 per 100 linear bed feet (Ibf). Beds were
formed and fumigated with methyl
bromide:chloropicrin, 67:33 at 2.3 lb/100 Ibf.
Banded fertilizer was applied in shallow grooves
on the bed shoulders at 3.1-0-4.3 lb N-P20s-
K,0/100 lbf after the beds were pressed and
before application of the black polyethylene
mulch. The total fertilizer applied was equivalent
to 148-60-206 Ib N-P20,-KO0/acre. The final beds
were 32 in. wide and 8 in. high and were spaced
on 9 ft centers, with four beds between seepage
irrigation/drainage ditches which were on 41 ft
centers. The standard watermelons were planted
in rows adjacent to the ditches and also served as
pollenizers for seedless watermelons that were
being evaluated in the two center beds of each
Watermelon seeds were planted on 17
February in holes punched in the polyethylene
mulch at 3 ft in-row spacing. Thirty-six entries
were included in the trial. The 18 ft long plots had
six plants each and were replicated three times in
a randomized complete-block design. Weed
control in row middles was by cultivation and
applications of paraquat. Pesticides were applied
as needed for control of silverleaf whitefly
endosulfann and esfenvalerate) and gummy stem
blight (chlorothalonil and metaxyl-chlorothalonil).
Watermelons were harvested 13 May, 27
May, and 4 June. Marketable fruit (U.S. No. 1 or
better) according to U.S. Standards for Grades of
Watermelons were separated from culls and
counted and weighed individually. Soluble solids
determinations were made with a hand-held
refractometer on six fruit of each entry at each
harvest, and the incidence of hollowheart was
recorded for these fruits.
Temperature during the experimental
period from 17 February to 4 June was near
normal in April, May, and June, but was 90 and
7F above normal in February and March,
respectively which provided for rapid initial growth
after seeding. Rainfall was 7 in. above normal in
Determining the Potential for Fruit and Nut Crops in North Florida
Blueberries, Peaches, and Nectarines
Jeff Williamson, Ext. Deciduous Fruit Crop Spec., Hort. Sci. Dept., UF, IFAS, Gainesville FL
Blackberries, Grapes, Persimmon, and Chestnut, Tim Crocker, Ext. Fruit Crop Spec., Hort. Sci. Dept.,
UF, IFAS, Gainesville, FL
Alternative Crops Session
Extension Conference Room
David Dinkins, Bradford Co. Ext. Dir., UF, IFAS, Starke, FL
Strawberry Production Practices for North Florida
David Dinkins, Bradford Co. Ext. Dir., UF, IFAS, Starke, FL
Robert Hochmuth, Multicounty Ext. Agent, SVREC, UF, IFAS, Live Oak, FL
Growing and Selling Fresh Cut and Potted Herbs
Maggie Ouellette, Maggie's Herbs, St. Augustine, FL
Experiences with Cut Flower Production and Marketing in Florida's Panhandle
Dan Mullins, Santa Rosa Co. Ext. Agent, UF, IFAS, Milton, FL
Alatermellon ~ ~ ~ VrevEauto
April, below normal in February, and about normal
in other months of the growing season.
Early yields, based on the first of three
harvests, ranged from 0 for SXW 5041 to 413
cwt/acre for 'Mardi Gras' (Table 1). Twenty-four
other entries had early yields similar to those of
'Mardi Gras'. Average fruit weight ranged from
6.3 Ibs for SF 829 to 26.5 Ibs for RWM 8007.
Soluble solids varied from 10.7% in RWM 8032 to
12.6% in SF 829. The incidence of hollowheart
ranged from 0 in LF 1390, LF 1832, 'Starset', and
SF 829 to 100% in ACX 5445, LF 1402, 'Royal
Sweet', 95-03 and 'Starbrite'.
Total yields varied from 240 cwt/acre
for SF 829 to 935 cwt/acre for 'Stars-N-Stripes'.
Seventeen other entries had yields that were
statistically similar to 'Stars-N-Stripes'. Average
fruit weight over the entire season ranged from
4.4 lbs for SF 829 to 24.0 Ibs for SSC 460083.
Eight other entries had fruit weight similar to that
for SSC 460083. Soluble solids concentrations
ranged from 10.4% for WM 8036 to 12.3% for SF
662 and SF 829. Seasonal average soluble solids
for all entries exceeded the 10% specified for
optional use to designate very good internal
quality in the U.S. Standards for Grades of
Watermelons. The incidence of hollowheart
ranged from 0 in LF 1832 to 67% in ACX 5445.
Watermelon variety evaluations have
been conducted at this location each spring
season since 1991. The highest yields ranged
from 439 cwt/acre in 1996 to 1026 cwt/acre in
1993. In spring 1997, the highest yield was 935
cwt/acre which was considerably greater than the
6-year average yield of 650 cwtlacre.
The incidence and severity of hollowheart
was especially great in the 1997 spring season in
this trial. Commercial plantings were generally
plagued with severe hollowheart as well.
However, most were accepted on the market
because of the unusually short crop. The reason
for the high level of hollowheart is not known.
Based on this and previous trials, the
following 'Allsweet' and blocky 'Crimson Sweet'
type varieties are expected to perform well in
Florida: 'Carnival', 'Fiesta', 'Ferrari', 'Mardi Gras',
'Regency', 'Royal Star', 'Royal Sweet', and
'Sangria'. Other varieties may perform equally
well on some farms.
Table 1. Eary and total yields. average uil weight, soluble soids and the Incidence and severity of hotowheart of watermelons.
Guf Coast Research and Eduatlln Center, Badenton. Spring 1997.
EariY Harvest' Total Harvest
Avg. fruit Soluble Avg. fruit Soluble
Weight weight Solids Holloheart Weight weight Solids Hllowteart
Entry (cwt/A)' (Ib) (%) (%) (In.}) (cwl/A)' (Ib) () (%) (Iin)
Stars-N-Stripes 163 b-e' 20.7 c-g 11.3 a-c 7 ab 0.8 be 935 a 19.7 bc 10.8 b-d 37 a-g 0.4a-c
96-29 335 ab 20.8 c-g 12.4 ab 67ab 0.6 c 840 ab 18.7 b-d 11.3 ad 50a-a 0.2 a-c
Ferrari 235 a-e 19.4 fg 11.2 a-c 67 ab 0.4 c 823 a-c 19.5 b-d 11.2 a-d 39a-g 0.3 a-c
Stargazer 200 a-e 21.8 a-g 11.8a-c 33 ab 0.1 c 805 a-d 19.1 b-d 11.4 a-d 34a-g 0.4 a-c
Mardi Gras 413 a 22.7 a-g 11.3 a-c 33 ab 1. a-c 799 a-e 22.0 a-c 11.2 a-d 29 a-g 04 a-c
WM 8038 210 ae 26.0 ab 11.0 bc 75 ab 0.9 a-c 784 a-e 21.8 a-c 10.4d 25 a-g 0.2 a-c
Starbrite 87 -e 24.8 ae 11.6 a-c 100a 0.2c 764 a-e 21.7a-c 11.5 a-d 1 ab 0.4 a-c
ACX 5413 372 ab 22.9 a-g 12.1 a-c 50 ab 0.4 c 761 a-e 19.8 bc 10.5 ed 11 e-g 0.1 be
SXW 5022 164 b- 20.7 c-g 12.0 a-c 67 ab 0.8 be 740 a-e 19.3 b-d 11.8 ab 45 a- 0.4 a-c
RWM 8032 252 ae 202 d-g 10.7 c 67 ab 0.2 c 738 a-e 20.2 bc 10.9 b-d 35 a-g 0.1 be
Festa 379 ab 20.3 d-g 11. a-c 60 ab 0.2 735a-e 19. b-d 10.7 b-d 31 a-g 0.2 a-c
94-52 290 a-c 25.3 a-d 12.0 a-c 75 ab .2.1 a 715 a-e 20.7 a-c 11. a-c 44a-f 0.7 a
95-03 162 b-a 19.4 g 12.1 a-c 100 a 0.6 c 882 a-I 20.0 be 11.5 a-d 58 a-c 0.3 a-c
ACX 5408 271 a-d 21.7 ag 12.2 a-c 33ab ..2 c 79 a-f 21.7 a-c 11.5 a-d 21 b-g 0.1 be
ACX 5404 275 a-d 20.7 c-g 12.3 ab 33 ab 0.2 c" 667 a- 19.0 b-d 11.7 ab 34 a-g 0.2 a-c
Starset 277 a-c 19.9 e-g 11.5 a-c b c 645 a-f 19.2 bd 11.5 a-d 18 c-g 0.1 b
SSC 460068 217 a-e 21.8 a-g 12.5 ab 83 a 14 a-c 627 a-g 20.5 be 11.5 a-d 56 a-d 0.6 a-c
Carnival 189 a-e 23.1 a-f 11.8 a-c 67 ab 0.5 c 22 a-g 19.9 bc 11.6 a-d 42 ag 0.4 a-c
WM 8052 219 a-e 25. a-c 11.5 a-c 83a 0.7 bc 610 b-g 21.7 a-c 10.5 cd 42 a-g 0.3 ac
ACX 5443 214 a-e 21.1 b-g 11.9 a-c 33 ab 0.3 c 609 bg 20.9 a-c 11.2 a-d 32 a-g 0.4 a-c
SSC 460083 235 a-a 25.6 a-c 11.1 a-c 50 ab 0.2 c 604 b-g 24,0 a 10.8 b-d 28 a-g 0.1 bc
Starfire 287 a-c 21.8 a-g 12.1 a-c 83 a 0.4 c 602 b-g 20.0 bc 11.7 ab 43 a-f 0.2 a-c
ACX 445 202 -a 20.6c-g 12.1 a-c 100 a 0.9a- 590b-h 18.4 -e 11.6 a-c 67 0.7 ab
ACX 5451 283 a-c 22.0 a-g 11.2 a-c 33ab 0.3 c 590 b-h 19.8 b 10.7 b-d 11e-g 0.1 be
ACX 5411 263 a-d 21.8 a-g 12.1 a-c 50ab 0.2 c 585 b-h 19.2 b-d 11.3 a-d 29 a-g 0.1 a-c
Sanglta 240 a-e' 20.7 c-g 12.4 ab 67 ab 0.5 549 b-i 19.2 b-d 11.7 ab 48 a- 0.2 a-c
ACX 5407 193 a-e 19.6 fg 11.4 a-c 50ab 0.4c 45 b-i 19.6 b-d 11.7ab 38a- 0.2 a-c
Royal Sweet 93c-e 21.3 b-g 12.1 a-c 100 a 2.0 ab 530b-i 20.4 bc 11.5 a-d 60a-c 0.6 a-c
SXW 5041 NH' NH NH NH NH 509 c-i 18.9 b-d 11.3 a-d 39 a- 0.4 a-c
RWM 8007 256 a-e 26.5a 11.4 a-c 33 ab 0.2 c 492 d- 22.1 ab 11.3 a-d 31 a-g 0.2 a-c
SXW 0088 148 be 20.0 e-g 12.5 a 33ab 0.2c 481 e-4 19.7 bc 11.6 a-d 13d-g 0.1 be
SF 662 39 de 7.3 h 12.3 ab 50 ab 0.1 c 387 f 5.8 f 12.3 a 6 Ig 0.1 c
LF 1402 88 c- 20.2 d-g 12.2 a-c 100 a 0.4 c 373 16.2 de 11.3 a-d 36 a-g 0.2 a-c
LF 1390 154 b-e 19.0 fg 11.6 a-c Ob O 313g-i 15.8 e 12 a 33 a- 0.1 bc
LF 1832 218 a-e 17.9 g 11.1 a-c Ob c 280 hi 18.6 b-d 10.8 b-d 0g 0c
SF 829 26e 8.3h 2.S a 0 b 0 2401 4.4 f 12.3a 8e-g 0.1
'Early harvest represents the first of three harvests.
'Acre = 4840 Ibf.
'Average width of fruit cracks of those fruit sampled.
'Mean separation in columns by Duncan's multiple range test. 5% level.
(Maynard, Vegetarian 97-11)
III. PESTICIDE UPDATE
A. Pelargonic Acid (Scythe Herbicide)
Labeled on Many Vegetables.
Pelargonic acid (Scythe herbicide) has
received labels for use on a number of fruit and
vegetable crops. The product is a contact, non-
selective, broad spectrum, foliar-applied
herbicide. It provides no residual control. The
labeling does contain recommendations for the
use of the product to enhance the activity of
glyphose and other non-residual herbicides such
as Touchdown, and soil-active herbicide
formulations of sulfonylureas, imidazolinones,
triazine, dinitroanilines and acylurea herbicides.
The use methods or use sites on the label
Vegetative Burndown: general control of weeds
for seedbed or site preparation, non-crop, and
around aquatic sites. Spot treatments may be
used in crop situations.
Directed and Shielded Sprays: applications may
be made in around desirable plants when contact
of foliage and green bark is avoided.
Priorto Emergence: ensure applications are made
before new growth or crop emerges from seed,
perennial rootstocks, corms or bulbs.
Dormant or Postharvest Spray: for control of
weeds growing in fields after commodity has been
Harvest Aid and Desiccation: to remove leaves of
plants prior to harvest and/or burndown of weeds
to facilitate harvest. Harvest aid and desiccation
uses include applications to root and tuber
vegetables, bulb vegetables and cotton only.
Applications must be made no later than 24 hours
prior to harvest (PHI = 24 hours).
Sucker Control. Pruning and Trimming: for use on
trees, vines, and canes.
Structural and Building Applications: self
The crop group labeled for some of the
representative commodities and use method for
the crop group are as follows:
1. Root, Tuber and Perennial Vegetables;
beet, carrot, ginger, potato, radish,
rutabaga, sweet potato, turnip (root) and
yam. Uses: vegetative burndown,
directed shielded, prior to emergence,
and dormant and postharvest.
Bulb Vegetables; leek, onion, shallot, garlic.
Uses: vegetative bumdown, directed shielded and
prior to emergence.
2. Leafy Vegetables; celery, cilantro, cress,
endive, fennel, lettuce, parsley, spinach,
swiss chard. Uses: vegetative burndown,
3. Cole or Brassica Crops; Brussels sprouts,
cabbage, cauliflower, collards, kale,
kohlrabi, greens (mustard and turip).
Uses: vegetative burndown, directed-
shielded, prior to emergence.
4. Legume Vegetables; beans (Phaseolus
spp. such as green, kidney, lima, mung,
navy etc. beans) Viana spp. ie southern
peas, Chinese longbean etc, peas (Pisum
spp. ie garden, green, sugar and snow
pea) lentil and soybeans. Uses:
vegetative burdown, directed-shielded,
prior to emergence.
5. Fruiting Vegetables; eggplant, okra,
pepper, and tomato. Uses: vegetative
burndown, directed-shielded, prior to
6. Cucurbits and Melons; cucumber, gourds,
muskmelons, pumpkin, squash and
watermelon. Uses: vegetative burndown,
directed-shielded, prior to emergence.
7. Herbs and Spices; anise, basil, caraway,
chive, cumin, curry, dill, fennel, oregano,
mints, rosemary, sage, savory, sweet
bay, tarragon, thyme and wintergreen.
Uses: vegetative bumdown, directed-
shielded, prior to emergence, dormant or
8. Greenhouses; all crops, plants and
Note: Consult label for rates for stand
alone rates and tank mix rates. Rates vary from
3-5% v/v for annual weeds, 5-7% v/v for perennial
weeds and late stage annuals and 7-10% v/v for
Scythe has been used in
experimental trials. Use on a trial basis.
(Stall, Vegetarian 97-11)
Prepared by Extension Vegetable Crops Specialists
Dr. D. J. Cantliffe
Dr. S. M. Olson
Mr. J. M. Stephens
Dr. G. J. Hochmuth
Professor. & Editor
Dr. S. A. Sargent
Dr. C. S. Vavrina
Dr. D. N. Maynard
Dr. W. M. Stall
Dr. J. M. White