Midwest Vegetable Guide - 2022 - 281

Sweet Corn - Weeds
exceed 2 lbs. of bentazon per acre, per season. REI: 48-hour.
HRAC 06.
Cadet (0.91EC) (fluthiacet-methyl) POST
| 0.6-0.9 fl.
oz. per acre. For processing sweet corn only. Apply from
preplant until corn reaches 48 inches tall, but before tasseling.
Controls velvetleaf and several other broadleaves. May be
tank-mixed with labeled postemergence herbicides. Add
COC or NIS. Do not exceed 1.25 fl. oz. per acre per year.
REI: 12-hour. PHI: 40-day. HRAC 14.
Callisto (40SC) (mesotrione) POST PRE
| 6-7.7 fl.
oz. per acre preemergence, 3 fl. oz. per acre postemergence.
Some varieties may be severely injured. If weeds are present,
add COC or NIS. Do not add UAN or AMS when applying to
emerged sweet corn. Adding atrazine at 0.25-0.5 lb. of a.i. per
acre for post applications, or 0.75 lb. a.i. per acre for pre
applications will improve weed control. Note
organophosphate insecticide precautions. Do not exceed 0.24
lb. mesotrione per acre per year (7.7 fl. oz. Callisto) from all
sources. REI: 12-hour. PHI: 45-day. HRAC 27.
Callisto Xtra (4SC) (mesotrione, atrazine) POST
|
20-24 fl. oz. per acre. Apply with NIS or COC. Apply after
corn emerges and before corn is 12 inches tall. Also controls
large crabgrass. Cultivars differ in sensitivity to this
herbicide; get information on cultivars prior to use. Do not
use on corn previously treated with Counter insecticide, or
within 7 days of treatment with any organophosphate or
carbamate insecticide. Do not exceed one application per
year. REI: 12-hour. PHI: 45-day. HRAC 27, HRAC 05. RUP.
dimethenamid-p plus atrazine products (dimethenamid-p,
atrazine) PRE
| Apply Commit ATZ at 2.5-4.6 pts.
per acre, Commit ATZ Lite at 2.0 to 3.5 pts. per acre, or
Guardsman Max at 2.5-4.6 pts. per acre. Use low rates on
coarse soils with low organic matter. Apply before planting
and incorporate, or after planting before corn emerges, or
after emergence before corn is 12 inches tall. Rates may be
reduced if corn will be cultivated or full-season control is not
needed. If multiple applications are made, do not exceed
maximum rate per acre per year. REI: 12-hour. PHI: 50-day.
HRAC 15, HRAC 05. RUP.
Double Header (acetochlor, mesotrione) PRE
|
1.4-2.4 qt. per acre. Apply to the soil surface up to 28 days
prior to planting or after planting but before crop emergence
or apply and incorporate 2 inches deep within 14 days prior
to planting. Use lower rates for coarse textured soil and soils
with low organic matter. Although other acetochlor +
mesotrione products are available, not all are registered for
use in sweet corn. See labels. REI: 12-hour. PHI: 45-day.
HRAC 15, HRAC 27.
Dual Magnum (7.62EC) (s-metolachlor) PRE
| 12
pts. per acre. Use lower rate on coarse soils. Apply before
planting and incorporate, or apply after planting but before
corn emerges. May also be applied as a directed spray
between rows when corn is 5-40 inches tall. Incorporate to
control nutsedge. May be mixed with atrazine, see label for
details. Do not exceed 3.9 pts. per acre per year. Dual II
Magnum contains a safener and may used instead of Dual
Magnum to limit crop injury under cool soil conditions. REI:
24-hour. PHI: 30-day. HRAC 15.
glyphosate products (glyphosate) POST
| 0.753.75
lbs. acid equivalent (ae) per acre. Use formulations
containing 3 lbs. ae per gal. at 16-48 fl. oz. per acre or
formulations containing 4.5 lbs. ae per gal. at 11-32 fl. oz. per
acre. Broadcast before or after planting but before crop
emerges, or apply up to 0.75 lb. acid equivalent between crop
rows with wipers, hooded or shielded sprayers after corn is
12 inches tall. Use low rate for annuals and higher rates for
perennials. See label for suggested application volume and
adjuvants. For RoundUp-Ready sweet corn only - will kill
other varieties: postemergence applications may be made
over-the-top of corn through the 8 leaf-collar stage (V-8) or
until corn is 30 inches tall. Drop nozzles are recommended if
corn is more than 24 inches tall, and must be used if corn is
more than 30 inches tall to prevent spraying into whorls. Do
not apply to corn more than 30 inches tall or if it has reached
the reproductive stage. See product label for maximum use
rates. REI: 4-hour to 12-hour. PHI: 7-day. HRAC 9.
Impact (2.8) (topramezone) POST
| 0.5-2 fl. oz.
per acre. Add MSO or high surfactant methylated oil
concentrate (HSMOC) and urea ammonium nitrate (UAN) or
spray grade ammonium sulfate (AMS). See label for additive
rates. REI: 12-hour. PHI: 45-day. HRAC 27.
Laudis (3.5) (tembotrione) POST
| 3 oz. per acre.
Apply with 1% v/v MSO plus 8.5 lbs. of AMS per 100 gals.
of spray solution. COC is less efficacious than MSO but can
be used instead of MSO when broadleaves are the main target
and conditions for control are excellent. Tank-mixing with
atrazine will improve efficacy and spectrum of weed species
controlled. REI: 12-hour. PHI: 45-day. HRAC 27.
Lexar EZ (s-metolachlor, atrazine, mesotrione) PRE
| Use Lexar EZ at 3 or 3.5 qts. per acre or Lumax EZ
at 2.7 or 3.25 qts. per acre. Use the lower rate on soils with
organic matter less than 3% and the higher rate on soils with
Midwest Veg Guide 2022
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Midwest Vegetable Guide - 2022

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