Southeastern U.S. Vegetable Crop Handbook - 2022 - 347

WEED CONTROL
TABLE 4-13. CHEMICAL WEED CONTROL IN GREENS (cont'd)
Weed
Herbicide,
Mode of Action Code*
and Formulation
clethodim, MOA 1
(Arrow, Clethodim,
Intensity, Select) 2 EC
(Select Max) 1 EC
sethoxydim, MOA 1
(Poast) 1.5 EC
Amount of
Formulation
Per Acre
Pounds Active
Ingredient
Per Acre
Precautions and Remarks
GREENS (Collard, Kale, Mustard Greens, and Turnip Greens or roots), Postemergence (cont'd)
Annual and perennial
grasses only
6 to 8 oz
9 to 16 oz
1 to 1.5 pt
0.094 to 0.125
0.07 to 0.125
0.2 to 0.3
Apply postemergence for control of grasses. See label for adjuvant and rate. Adding
crop oil may increase the likelihood of crop injury at high air temperatures and high
humidity. Very effective in controlling annual bluegrass. Apply to actively growing
grasses not under drought stress. PHI for green crops is 14 days. PHI for turnips
grown for roots is 30 days.
ALSO LABELED FOR RAPE GREENS. PHI for turnip is 14 days. PHI for other
greens = 14 days. Apply to emerged grasses. Consult manufacturer's label for
specific rates and best times to treat. See label for adjuvant and rate. Adding crop
oil to Poast may increase the likelihood of crop injury at high air temperatures and
high humidity.
GREENS (Collard, Kale, Mustard Greens, and Turnip Greens or roots), Row middles
Most broadleaf weeds
less than 4 in. tall or
rosettes less than 3 in.
in diameter; does not
control grasses
carfentrazone-ethyl,
MOA 14
(Aim) 1.9 EW or 2 EC
Most emerged weeds glyphosate, MOA 9
(numerous brands and
formulations)
Up to 2 oz
See labels
See labels
Up to 0.031
Apply post-directed using hooded sprayers for control of emerged weeds. If crop is
contacted, burning of contacted area will occur. Use a nonionic surfactant or crop
oil with Aim. See label for rate. Coverage is essential for good weed control. Can be
tank mixed with other registered herbicides.
Not labeled for turnip greens. Apply as a hooded spray in row middles, as shielded
spray in row middles, as wiper applications in row middles, or postharvest. To
avoid severe injury to crop, do not allow herbicide to contact foliage, green shoots
or stems, exposed roots, or fruit of crop. PHI = 14 days.
*Mode of action (MOA) code developed by the Weed Science Society of America.
TABLE 4-14. CHEMICAL WEED CONTROL IN HOPS
Weed
Herbicide,
Mode of Action Code*
and Formulation
HOPS, Preplant and Preemergence
Broadleaf weeds including
chickweed, wild radish,
and henbit. Limited control
of annual grasses such as
barnyard grass and large
crabgrass
Broadleaf weeds and
annual grasses
Annual grasses and smallseeded
broadleaf weeds
Annual grasses and
small-seeded broadleaf
weeds
HOPS, Postemergence
Canada thistle
Broadleaf weeds
Annual and perennial
grasses
Emerged broadleaf and
grass weeds
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
flumioxazin, MOA 14
(Chateau) 51 SW
0.188
6 oz
Apply to dormant hops November through February.
Amount of
Formulation
Per Acre
Pounds Active
Ingredient
Per Acre
Precautions and Remarks
norflurazon, MOA 12
(Solicam) 80 DF
trifluralin, MOA 3
(Treflan) 4 L or 4 EC
pendimethalin, MOA 3
(Prowl H2
O) 3.8 AS
clopyralid, MOA 4
(Solix 3, Spur)
2,4-D, MOA 4
(amine 4 and various other
brands) 3.8 SL
clethodim, MOA 1
(Select Max) 1 EC
pelargonic acid, MOA 26
(Scythe) 4.2 EC
carfentrazone-ethyl,
MOA 14
(Aim) 2 EC
glyphosate, MOA 9
(numerous brands and
formulations)
9 to 16 oz
See label
See label
Up to 0.031
Up to 2 oz
See labels
See labels
*Mode of action (MOA) code developed by the Weed Science Society of America.
2022 Vegetable Crop Handbook for Southeastern United States
347
Directed hooded spray for row middles. Avoid contact with green shoots and
foliage.
Apply before crop emergence to control emerged weeds. There is no residual
activity. Avoid contact with foliage and green bark. See label for further instructions.
May be used to control basal sucker growth.
Directed hooded spray for row middles. Most effective on broadleaf weeds less
than 4 in. in height. PHI = 7 days.
2 to 4
2.5 to 5 lb
0.5 to 0.75
1 to 1.5 pt
1.1 to 4.0
1.1 to 4.2 qt
0.3 to 0.67
See labels
0.125 to 0.25 Some transient minor leaf cupping may occur to lower leaves and suckers if
spray is exposed to plant. PHI = 30 days.
See labels
Apply with a hooded sprayer for row middles. Hop foliage is susceptible to this
product. PHI = 28 days.
0.07 to 0.125 For repeat applications make on a minimum of a 14-day interval. PHI = 21 days.
Apply as a directed treatment a minimum of 6 months after planting hops. Rate
is soil texture dependent.
See label for rate information. Shallow incorporate to established, dormant crop.
Use equipment that will ensure thorough soil mixing with minimal damage to crop.
See label for instructions.

Southeastern U.S. Vegetable Crop Handbook - 2022

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