Midwest Vegetable Guide - 2022 - 192

Leafy Vegetables and Herbs (Non-Brassica) - Insects
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.
Slugs
Occasionally, slugs and snails seriously damage seedlings;
tender, low-growing leafy vegetables; or ripening fruit that
are on the ground. Slug and snail feeding damage (hollowedout
areas) can be found anywhere on fruit, but is usually
concentrated near the stem. Slugs leave behind telltale slime
trails (silvery trails) on the surfaces of fruit or leaves. Slugs
and snails are active at night or cloudy days.
Slugs and snails favor continuously moist soil and organic
mulch. They lay eggs in groups in moist soil, and overwinter
in organic mulch. Slugs can complete their entire life cycle in
a field.
Prevent infestation by scattering bait products to the soil
surface around the perimeter of the planting. Make a rescue
treatment by scattering the bait products on the soil as a band
between rows. Apply in evening after a rain or irrigation.
Avoid contact with edible product.
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 | Slug hiding places should be
eliminated - such as, boards, stones, weedy areas, or heavy
mulch - so the soil can become warm and dry. Raised beds
that can dry out more readily than flat beds reduce slug
problems. Using black plastic mulch discourages slug buildup
because it causes the soil to heat up and dry out.
Pesticide
Deadline M-Ps (4P) (metaldehyde) Florence Fennel,
Spinach, Swiss Chard | 25 lbs. per acre. Scatter bait around
the perimeter of plantings or between rows. Apply in evening
after a rain or irrigation. Avoid contact with edible product.
Do not exceed 3 applications per crop cycle for spinach. Do
not exceed 4 applications per crop cycle for Florence fennel
and swiss chard. REI: 12-hour. PHI: 0-day for spinach, 1-day
for Florence fennel and swiss chard. IRAC UN.
192
Sluggo 1B (iron phosphate) Head Lettuce, Leaf Lettuce,
Spinach, Swiss Chard | 20-44 lb. per acre, or 0.5-1 lb. per
1,000 sq. ft. Prevent infestation by scattering bait products to
the soil surface around the perimeter of the planting. Make a
rescue treatment by scattering the bait products on the soil as
a band between rows. Apply in evening after a rain or
irrigation. REI: 0-hour. PHI: 0-day. IRAC UN. OMRI-listed.
Tarnished Plant Bug
Tarnished plant bug (TPB) damage to lettuce and spinach can
reduce the marketability of these crops and can make them
more susceptible to bacterial diseases. TPB adults and
nymphs also feed on the youngest growth in the heart of the
plant, which may lead to symptoms similar to blackheart.
No formal economic thresholds have been developed for this
insect pest in leafy vegetables. However, in Canada, the
thresholds used in celery have proven to be a suitable
guideline for management decisions. Insecticide treatment is
recommended whenever a threshold of 0.2 TPB per plant is
reached from transplanting until three weeks before harvest.
Note that in many cases, TPB damage is observed before
large numbers of TPB nymphs and/or adults are detected.
Pesticide
Baythroid XL (1EC) (beta-cyfluthrin) Arugula, Chicory,
Cress, Endive, Escarole, Florence Fennel, Head Lettuce,
Leaf Lettuce, Parsley, Radicchio, Spinach, Swiss Chard | 2.43.2
fl. oz. per acre. Do not exceed 12.8 fl. oz. per acre per
season. Allow 7 days between applications. REI: 12-hour.
PHI: 0-day. IRAC 03A. RUP.
Beleaf (50SG) (flonicamid) Arugula, Chicory, Cress,
Endive, Escarole, Florence Fennel, Head Lettuce, Leaf
Lettuce, Parsley, Radicchio, Spinach, Swiss Chard | 2.0-2.8
oz. per acre. Do not exceed 8.4 oz. per acre per season. REI:
12-hour. PHI: 0-day. IRAC 29.
Brigade 2EC (bifenthrin) Head Lettuce, Spinach | Use 2EC
formulations at 5.12-6.4 fl. oz. per acre and do not exceed 32
fl. oz. per acre per season on head lettuce or 25 fl. oz. per acre
per season on spinach. Use 10DF, 10WP, or 10WSB
formulations at 12.8-16 oz. per acre and do not exceed 80 oz.
per acre on head lettuce or 64 oz. per acre per season on
spinach. Allow 7 days between applications. REI: 12-hour.
PHI: 7-day. IRAC 03A. RUP.
Mustang Maxx (0.8) (zeta-cypermethrin) 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, Watermelon | 2.24-4.0 fl. oz. per acre. Do not exceed
24 fl. oz. per acre per season. REI: 12-hour. PHI: 5-day.
IRAC 03A. RUP.
Midwest Veg Guide 2022
Midwest Vegetable Guide - 2022

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