Southeastern U.S. Vegetable Crop Handbook - 2021 - 328

WEED CONTROL
TABLE 4-7. CHEMICAL WEED CONTROL IN CILANTRO
Weed
Herbicide,
Mode of Action Code*
and Formulation
CILANTRO, Preemergence (PRE)
Annual grasses and
broadleaf weeds
Annual grasses
small-seeded broadleaf
weeds
Annual grasses and
small-seeded broadleaf
weeds (1 to 3 leaf
stage)
Annual and perennial
grasses
Most broadleaf weeds
less than 4 in. tall or
rosettes less than 3 in.
in diameter; does not
control grasses
Broadleaf weeds and
some annual grasses
prometryn, MOA 5
(Caparol) 4L
linuron, MOA 7
(Lorox DF) 50 WDG
CILANTRO, Postemergence
linuron, MOA 7
(Lorox DF) 50 WDG
0.5 to 1
1 to 2 lb
Apply to crop plants with a minimum of 3 true leaves to avoid significant injury.
Early occurring minor injury should not affect yield. If no injury occurs after the
initial application, a second may be made 14 days after the first. Injury may
occur under high temperatures, following cloudy periods or when mixed with
other pesticides or adjuvants (see label for details). PHI = 21 days.
sethoxydim, MOA 1
(Poast) 1.5 EC
carfentrazone-ethyl,
MOA 14
(Aim) 2 EC
caprylic acid, MOA 26
(Homeplate)
0.185
1.5 pt
Up to 0.031
Up to 2 oz
See label
See label
Apply post-directed using hooded sprayers for control of emerged weeds. If
crop is contacted, burning of contacted area will occur. Use a crop oil concentrate
or a nonionic surfactant with Aim. See label for directions. Coverage
is essential for good weed control. Can be tank mixed with other registered
herbicides.
May be applied prior to planting as a burndown treatment for emerged weeds,
as a preemergence application after seeding but before emergence, as a
directed or shielded application between rows or as a postharvest application.
Use higher spray volumes for high weed density and weeds larger than 5 in.
Coverage is important for acceptable weed control. May be tank mixed with
other herbicides. See label for further instructions.
* Mode of action (MOA) code developed by the Weed Science Society of America.
Maximum use rate per season is 3 pt per acre. PHI =15 days.
1 to 1.6
2 to 3.2 pt
0.5 to 1
1 to 2 lb
Rates are soil-dependent. See label for more information. Do not use on sand
or loamy soils. PHI = 30 days. Check label for crop rotation restrictions.
Some cultivars may be susceptible to injury. Do not use on sandy or loamy
soils, or soils with less than 1% organic matter. Plant at least 0.5 in. deep. PHI
for leaves = 21 days. PHI for coriander seed = 155 days.
Amount of
Formulation
Per Acre
Pounds Active
Ingredient
Per Acre
Precautions and Remarks
TABLE 4-8. CHEMICAL WEED CONTROL IN COLE CROPS: BROCCOLI, CABBAGE, CAULIFLOWER (cont'd)
Weed
Herbicide,
Mode of Action Code*
and Formulation
Contact kill of all green
foliage, stalebed
application
paraquat, MOA 22
(Parazone) 3 SL
(Gramoxone SL) 2 SL
Amount of
Formulation
Per Acre
Pounds Active
Ingredient
Per Acre
Precautions and Remarks
COLE CROPS: BROCCOLI, CABBAGE, CAULIFLOWER - Preplant and Preemergence
0.5 to 1
1.3 to 2.7 pt
2 to 4 pt
Apply in a minimum of 10 gal spray mix per acre to emerged weeds before crop
emergence or transplanting as a broadcast or band treatment over a preformed
row. Use sufficient water to give thorough coverage. Row should be formed
several days ahead of planting and treating to allow maximum weed emergence.
Use a nonionic surfactant at a rate of 16 to 32 oz per 100 gal spray mix or 1 gal
approved crop oil concentrate per 100 gal spray mix. Paraquat product labels
require applicators to take an EPA-approved training every 3 years in order to mix,
load, and apply paraquat.
Most broadleaf weeds
less than 4 in. tall or
rosettes less than 3 in.
in diameter; does not
control grasses
Annual and perennial
grass and broadleaf
weeds, stale bed
application
carfentrazone-ethyl,
MOA 14
(Aim) 2 EC
glyphosate, MOA 9
(numerous brands and
formulations)
Up to 2 oz
See labels
Up to 0.031 Apply no later than one day before transplanting, or seven days before seeding.
See label for rate for crop oil or nonionic surfactant. Coverage is essential for
good weed control. See label for more information.
See labels
Apply to emerged weeds before crop emergence or before transplanting. Perennial
weeds may require higher rates of glyphosate. Consult the manufacturer's label
for rates for specific weeds. When applying Roundup before transplanting crops
into plastic mulch, care must be taken to remove residues of this product from
the plastic prior to transplanting. To prevent crop injury, residues can be removed
by 0.5 in. rainfall or by applying water via a sprinkler system applied at one time.
Certain glyphosate formulations may require the addition of a surfactant. Adding
nonionic surfactant to glyphosate formulated with nonionic surfactant may result in
reduced weed control.
Emerged broadleaf
and grass weeds
pelargonic acid, MOA 26
(Scythe) 4.2 EC
See label
See label
Also labeled for collards, kale, mustard/turnip greens. Apply as a preplant burndown
or prior to emergence from seed. There is no residual activity. May be tank
mixed with soil residual herbicides. See label for instructions. May also be used as
a banded spray between row middles. Use a shielded sprayer directed to the row
middles to reduce drift to the crop.
328
2021 Vegetable Crop Handbook for Southeastern United States

Southeastern U.S. Vegetable Crop Handbook - 2021

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