Midwest Vegetable Guide - 2022 - 262

Root Crops - Insects
Root Crops - Insects
Reviewed by Laura Ingwell, Kacie Athey, Elizabeth Long -
Sept 2021
Recommended Controls
Aphids
Pesticide
Actara (25WDG) (thiamethoxam) Beet, Carrot, Celeriac,
Horseradish, Parsnip, Radish, Rutabaga, Turnip | 1.5-3.0 oz.
per acre. Apply as a foliar spray. Do not exceed 4.0 oz. per
acre per season for radish. Do not exceed 8.0 oz. per acre per
season for beet, carrot, celeriac, horseradish, parsnip,
rutabaga, and turnip. Allow 7 days between applications.
REI: 12-hour. PHI: 7-day. IRAC 04A.
Admire Pro (4.6SC) (imidacloprid) Beet, Carrot, Celeriac,
Horseradish, Parsnip, Radish, Rutabaga, Turnip | 0.31-0.74
fl. oz. per 1,000 ft. of row. Apply as chemigation through
drip, as an in-furrow spray, shanked in to seed trench, or as a
narrow banded spray over eventual row within 14 days of
planting. Do not apply more than once per season. REI: 12hour.
PHI: 21-day. IRAC 04A.
Beleaf (50SG) (flonicamid) Beet, Carrot, Celeriac, Parsnip,
Radish, Rutabaga, Turnip | 2.0-2.8 oz. per acre. Use lower
rate for building populations and use higher rate for greater
populations or dense foliage. Do not exceed 8.4 oz. per acre
per year. Allow 7 days between applications REI: 12-hour.
PHI: 3-day IRAC 29.
Brigade 2EC (bifenthrin) Beet | Use 2EC formulation at
5.1-6.4 fl. oz. per acre and do not exceed 25.6 fl. oz. per acre
per season. Use 10DF, 10 WP, or 10WSB formulations at
12.8-16.0 oz. per acre and do not exceed 64 oz. per acre per
season. Allow 7 days between applications. REI: 12-hour.
PHI: 1-day. IRAC 03A. RUP.
Brigade 2EC (bifenthrin) Carrot, Celeriac, Horseradish,
Parsnip, Radish, Rutabaga, Turnip | Use 2EC formulation at
5.1-6.4 fl. oz. per acre and do not exceed 25.6 fl. oz. per acre
per season. Use 10DF, 10 WP, or 10WSB formulations at
12.8-16.0 oz. per acre and do not exceed 64 oz. per acre per
season. Allow 7 days between applications. REI: 12-hour.
PHI: 21-day. IRAC 03A. RUP.
Lannate LV (2.4L) (methomyl) Horseradish | 1.5 pts. per
acre. Ground application only. REI: 48-hour. PHI: 65-day.
IRAC 01A. RUP.
M-Pede (3.8) (potassium salts of fatty acids) Beet, Carrot,
Horseradish, Parsnip, Radish, Rutabaga | 1-2% by volume.
262
Midwest Veg Guide 2022
Must contact aphids to be effective. REI: 12-hour. PHI: 0day.
IRAC UN, FRAC NC. OMRI-listed.
Malathion 5EC (malathion) Beet, Carrot, Horseradish,
Parsnip, Radish, Rutabaga, Turnip | Use 5EC formulations at
1.5-2.0 pts. per acre on beets, carrots, parsnips and
horseradish; 1.5 pts. per acre on radishes and rutabagas; or
1.0-2.0 pts. per acre on turnips. Use 57EC formulations at
1.5-2.0 pts. per acre on beets, carrots, and parsnips; 1.0-1.6
pts. per acre on radish and rutabagas; or 1.0-2.0 pts. per acre
on horseradish and turnips. Do not exceed 3 applications per
season. Allow 7 days between applications. REI: 12-hour on
beet, rutabaga, turnip and 24-hour on carrot, horseradish,
parsnip. REI: 12-hour. PHI: 7-day. IRAC 01B.
Neemix (0.39) (azadirachtin) Beet, Carrot, Celeriac,
Horseradish, Parsnip, Radish, Rutabaga, Turnip | 5-7 fl. oz.
per acre. Suppression of nymphs and adult feeding
deterrence. REI: 4-hour. PHI: 0-day. IRAC UN. OMRI-listed.
Platinum 2SC (thiamethoxam) Beet, Carrot, Celeriac,
Horseradish, Parsnip, Radish, Rutabaga, Turnip | Use 2SC
formulations as a soil treatment at 5.0-12.0 fl. oz. per acre on
beet, carrot, parsnip, rutabaga, and turnip or 5.0-6.5 fl. oz. per
acre on radish, and do not exceed 12 fl. oz. per acre per
season on beet, carrot, parsnip, rutabaga, and turnip or 6.5 fl.
oz. per acre on radish. Use 75SG formulations as a soil
treatment at 1.7-4.0 oz. per acre on beet, carrot, parsnip,
rutabaga, and turnip or 1.7-2.2 fl. oz. per acre on radish, and
do not exceed 4.0 oz. per acre per season on beet, carrot,
parsnip, rutabaga, and turnip or 2.2 oz. per acre on radish.
REI: 12-hour. IRAC 04A.
Sivanto 200 (1.67SL) (flupyradifurone) Beet, Carrot,
Celeriac, Horseradish, Parsnip, Radish, Rutabaga, Turnip |
7.0-14 fl. oz. per acre. Do not exceed 28.0 fl. oz. per acre per
season. Allow 10 days between applications. REI: 4-hour.
PHI: 7-day. IRAC 04D.
Carrot Weevil Beetle
Prior to transplanting, use carrot-baited monitoring traps to
determine level of carrot weevil pressure in the field. Begin
insecticide applications in the spring when plants have 3-true
leaves (petioles) and direct applications at the base of the
plant where adult weevils are active.
Non-Pesticide
Carrot, Parsley | Use crop rotation to reduce buildup of carrot
weevil populations. Disk crop residue at the end of the
growing season to eliminate food resources and reduce
overwintering survival of life stages remaining in the field.
Midwest Vegetable Guide - 2022

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