Midwest Vegetable Guide - 2022 - 144

Cucurbit Crops - Weeds
listed above except Ohio: use 0.67-1.33 pts. per acre as a
broadcast application over top or between crop rows after
seeding and before crop emergence. If growing on plastic
mulch, broadcast before laying plastic. In all crops, there is
less risk of crop injury if applied between rows and with
transplants. Will not control emerged weeds. Do not exceed 1
application per crop per season. REI: 24-hour. PHI: 30-day
for cucumbers, squash, and pumpkins; 60-day for
cantaloupe/muskmelon, and watermelon. HRAC 15.
glyphosate products (glyphosate) POST
Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash,
Watermelon | 0.75-3.75 lbs. acid equivalent (ae) per acre. Use
formulations containing 3 lbs. ae per gal. (4 lbs.
isopropylamine salt per gal.) at 1-5 qts. per acre, or
formulations containing 4.5 lbs. ae per gal. (5 lbs. potassium
salt per gal) at 0.66-3.3 qts. per acre. Broadcast 3 days before
transplanting, or apply between crop rows with hooded or
shielded sprayers. Use low rate for annuals and higher rates
for perennials. See label for suggested application volume
and adjuvants. Remove herbicide residue from plastic mulch
prior to transplanting. REI: 4-hour to 12-hour. PHI: 14-day,
HRAC 9.
League (75WDG) (imazosulfuron) POST PRE
Cantaloupe/Muskmelon, Watermelon | 4.0-6.4 oz. per acre.
Use the higher rate in fields with a known history of yellow
nutsedge. Apply between rows after plants are wellestablished
and at least 5 inches wide. Avoid contact with
crop and plastic mulch (if present). If emerged weeds are
present include a manufacturer-recommended surfactant to
control yellow nutsedge and labeled broadleaf weeds that are
1-3 inches tall. Do not exceed 1 application and 6.4 oz. per
acre per year. REI: 12-hour. PHI: 48-day. HRAC 02.
paraquat products (paraquat) POST
Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash,
Watermelon | 2-4 pts. per acre of 2 lb. per gal. formulation or
1.3-2.7 pt. per acre of 3 lb. per gal. formulation. Add 1 qt.
COC (1% v/v) or 0.5 pt. NIS (0.25% v/v) per 25 gal. of
solution and apply to emerged weeds less than 6 " tall prior to
transplanting or after direct-seeding but before crop
emergence. Certified applicators must successfully complete
an EPA-approved training program before mixing, loading,
and/or applying paraquat. REI: 12 to 24-hour. HRAC 22.
RUP.
pendimethalin products (pendimethalin) PRE
Cantaloupe/Muskmelon, Watermelon | 2.1 pts. per acre.
Apply 3.8 formulations to row middles using a shielded
sprayer with 6 inches on either side of the row middles.
Apply before transplanting or before emergence of directseeded
crop. A second application may be made before vines
144
run. Wait at least 21 days between applications. Do not
exceed 2.1 pts. per acre per application or 4.2 pts. per acre per
season. REI: 24-hour. PHI: 35-day. HRAC 03.
Poast (1.5EC) (sethoxydim) POST
Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash,
Watermelon | 1-1.5 pts. per acre. Add 1 qt. COC per 25 gal.
of spray solution (1% v/v). Spray on actively growing grass.
Do not exceed 3 pts. per acre per growing season. REI: 12hour.
PHI: 14-day for squash, pumpkin, and watermelon; 3day
for cantaloupe and cucumber. HRAC 01.
Prefar 4E (bensulide) PRE
Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash,
Watermelon | 5-6 qts. per acre. Use low rate on soils with less
than 1% organic matter. Apply before planting and
incorporate 1-2 in. or apply after seeding before crop emerges
and irrigate within 24 hours. REI: 12-hour. HRAC NC.
Reflex (2L) (fomesafen) PRE
Pumpkin, Squash,
Watermelon | For Illinois, Michigan, Minnesota, Missouri,
and Ohio only. IL 24c exp. 04/28/26. MI 24c exp. 12/31/23.
MN 24c exp. 12/31/25. MO 24c exp. 12/31/21. OH 24c exp.
12/31/24. For pumpkins: 6-16 fl. oz. per acre in all states
listed above except Missouri. For squash: 8-16 fl. oz. per
acre in all states listed above except Illinois and Missouri.
May be applied as a broadcast or row-middle application
after seeding but before emergence on bare ground, or before
transplanting on bare ground (up to 7 days prior to
transplanting), and as a row middle application that does not
contact the plants. For watermelon: 10-16 fl. oz. per acre in
Missouri only. Applied as with squash and pumpkin, but can
also be used both under and over plastic mulch before
transplanting. An overhead irrigation or rainfall event
between Reflex application and transplanting will ensure
herbicide activation and will likely reduce the potential for
crop injury due to splashing. REI: 24-hour. PHI: 32-day for
squash, and pumpkin; 35-day for watermelon. HRAC 14.
Sandea (75) (halosulfuron) POST PRE
Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash,
Watermelon | For cantaloupe/muskmelon, cucumber,
pumpkin: apply 0.5-0.75 oz. per acre to the soil surface after
direct-seeding but prior to cracking or apply at least 7 days
before transplanting. Or apply 0.5-1.0 oz. per acre either over
the top or a directed/hooded spray after the crop has been
transplanted for a minimum of 14 days and reached the 2-5
true leaf stage, but before the first female flowers appear.
Avoid contact with the top surface of plastic mulch if present.
For watermelon in Illinois, Indiana, Kansas, Michigan,
Missouri, and Ohio: used as directed for
cantaloupes/muskmelon but can also be applied under plastic
mulch before laying. Wait at least 7 days after application
and mulch laying before seeding or transplanting. For
Midwest Veg Guide 2022
Midwest Vegetable Guide - 2022

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