Midwest Vegetable Guide - 2022 - 193

Leafy Vegetables and Herbs (Non-Brassica) - Weeds
Pyganic EC 5.0 II (0.41) (pyrethrins) Arugula, Cress,
Endive, Escarole, Fennel, Florence Fennel, Head Lettuce,
Leaf Lettuce, Parsley, Radicchio, Spinach, Swiss Chard | Soil
drench (in greenhouse): add 0.375 fl. oz. to 5 gal. of water
and apply as a soil drench to 1,000 sq. ft. of soil or non-soil
media. Do not exceed the maximum rate of 0.375 fl. oz. per
1,000 sq. ft. Foliar applications: 4.5-15.61 fl. oz. per acre in a
minimum of 2 gallons of water per acre for field crops. Do
not exceed the maximum application rate of 0.05 lbs. ai. per
acre. REI: 12-hour. IRAC 03A. OMRI-listed.
Sevin XLR Plus (4SC) (carbaryl) Endive, Escarole,
Florence Fennel, Head Lettuce, Leaf Lettuce, Parsley,
Spinach, Swiss Chard | 0.5-2 qts. per acre. Do not exceed 6
qt. per acre per season. REI: 12-hour. PHI: 14-day. IRAC
01A.
Leafy Vegetables and Herbs
(Non-Brassica) - Weeds
Reviewed by Stephen Meyers, Ben Phillips - Sept 2021
Recommended Controls
All Weeds
Most herbs are weak competitors with weeds, and while a
few herbicides are registered on many herbs, they generally
are for site preparation or for preemergence control or
postemergence control of emerged grasses. Herbicides are not
widely labeled across the many leafy greens and herbs.
Instead, herbicides are labeled based on the plant families the
crops come from. For example, cilantro, dill and parsley have
several herbicides that would damage any other crop.
Similarly, spinach and Swiss chard have unique herbicides.
Lettuces and the related crops like Chicory, Endive, Escarole,
Radicchio have few labels for preemergence or over-the-top
use because many weeds come from this plant family and are
targeted by broadleaf herbicides.
For directed-seed crops, prepare a stale seedbed several
weeks in advance of planting, allow weeds to emerge, and
kill weeds without bringing new weed seeds to the surface
with a burndown herbicide, flame weeder, or very shallow
cultivation. In fields with lower weed pressure, it may be
possible to plant plant seeds into some emerged weeds, and
then use an approved burndown herbicide prior to crop
emergence to control emerged weeds. For crops like cilantro
and dill that take a long time to emerge, a burndown
application made just prior to crop emergence is especially
useful, but it can also pay off for faster-emerging species like
lettuce or spinach.
For specific weeds controlled by each herbicide, check the
Relative Effectiveness of Herbicides for Vegetable Crops
table.
Rates provided in the recommendations below are given for
overall coverage. For a banded treatment, reduce amounts
according to the portion of acre treated.
Non-Pesticide
Arugula, Basil, Chicory, Chive, Cilantro, Coriander, Cress,
Dill, Endive, Escarole, Fennel, Florence Fennel, Head
Lettuce, Lavender, Leaf Lettuce, Marjoram, Oregano,
Parsley, Radicchio, Rosemary, Sage, Savory, Spinach, Swiss
Chard, Tarragon, Thyme | Weed control in leafy vegetables
and herbs often relies heavily on cultivation and handweeding
for full season weed control. These operations are
most efficient when planting arrangement is designed with
weed control in mind and is designed to work with available
weed control equipment. Specialized weeding equipment for
leafy vegetables includes basket weeders, narrow-bladed
hoes, finger weeders, and others. A stale seedbed can be
prepared prior to transplanting with flame weeding or very
shallow cultivation to control emerged weeds, instead of
herbicides. Using transplants is helpful for weed control
because the size difference between weeds and crop early in
the season make mechanical control easier. Plastic and paper
mulches have been used with success for transplanted crops.
Pesticide
Aim EC (2) (carfentrazone) POST
Arugula, Basil,
Chicory, Chive, Cilantro, Coriander, Cress, Dill, Endive,
Escarole, Fennel, Florence Fennel, Head Lettuce, Lavender,
Leaf Lettuce, Marjoram, Parsley, Radicchio, Rosemary,
Savory, Spinach, Swiss Chard, Tarragon, Thyme | 1-2 fl. oz.
per acre. For leafy vegetables (not including herbs): Apply
as burndown treatment at least 1 day before transplanting or
at least 7 days before seeding. Tank-mix with another labeled
burndown product for best control. For leafy vegetables and
herbs: Apply to row middles with a hooded sprayer to
control weeds up to 4 inches tall. Add COC, NIS, or MSO.
AMS will improve weed control. Do not exceed 6.1 fl. oz.
per acre per year or 2 applications per crop per year. REI: 12hour.
HRAC 14.
Balan DF (60) (benefin) PRE
Head Lettuce, Leaf
Lettuce | 2-2.5 lbs. per acre. Apply and incorporate before
seeding or transplanting. REI: 12-hour. HRAC 03.
Caparol 4L (prometryn) POST PRE
Midwest Veg Guide 2022
Cilantro,
Dill, Florence Fennel, Parsley | For cilantro: apply 2.0-3.2
pts. per acre after seeding but before crop emergence. For dill
193
Midwest Vegetable Guide - 2022

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