Management of Insect and Mite Pests in Canola
Published Oct. 2022|Id: CR-7667
By
Tom A. Royer, Kristopher Giles
Several arthropod pests can damage canola sporadically throughout the region. Pesticides should not be used as “preventative insurance” because misuse can cause pest resurgence issues and is rarely economically or environmentally justifiable. Many canola pest problems can be reduced by following good cultural practices, such as selecting varieties that are adapted to Oklahoma growing conditions, planting at an optimal date and providing proper fertilization and good weed control.
The information herein is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the Cooperative Extension Service is implied.
Pesticide recommendations in this publication were correct as of the “Modified Date" but always check the label that came with the purchased insecticide for the most current rates and restrictions
The first name listed is the trade name of a product registered for use in corn for the listed pest. The name in (parentheses) listed below the trade name is the name of the active ingredient. The active ingredient name is provided because in many cases, there are other registered products that contain the same active ingredient and may cost less, so producers should compare prices.
The number [in brackets] following a product is its Mode of Action number [MOA]. The more frequently insecticides with the same MOA are used, the more likely resistance will develop. The MOA number provides an easy way to select and rotate different modes of action to avoid selecting for pests that are resistant to a certain mode of action.
Refer to the following publications for additional information on pest management in canola.
- BAE-1110 Storing Oklahoma Winter Canola
- CR-2133 Crop and Forage Recordkeeping Software
- CR-2191 Winter Canola Performance Trials
- EPP-7085 Pest Management Needs Assessment for Oklahoma Canola Producers
- EPP-7089 Caterpillars in Canola
- EPP-7095 Sclerotinia Stem Rot of Canola
- EPP-7196 Grasshopper Management in Rangeland, Pastures, and Crops
- EPP-7671 Black Leg of Canola
- PSS-2130 Managing Winter Canola in Oklahoma
- PSS-2131 Winter Canola Planting Guide for the Southern Great Plains
- PSS-2150 Winter Canola Cultivar Comparison Chart
- PSS-2175 Importance of Herbicide Application Timing on Winter Canola
An additional source of information is MF-2734, “Great Plains Canola Production Handbook”, is a joint publication of Kansas State University, Oklahoma State University and the University of Nebraska.
Management of Insect and Mite Pests in Canola
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comments |
|---|---|---|---|
| Aphids | Planting Time | Research data indicates that aphids are a consistent pest of winter canola in fall and winter. The use of seed treatments is highly recommended for early-season management of aphids. Additional foliar insecticide applications may be necessary for late-season control of aphids. Green peach aphid is known to have resistance to pyrethroid [MOA group 3] insecticides. Products that contain these active ingredients that are bundled with fungicides are available. | |
| Cabbage aphid: small blue-gray aphid with short cornicles, and is usually covered with a powdery wax secretion. | Gaucho 600 [4A] (imidacloprid) | 10.24 to 25.6 fl oz/ cwt seed | |
| Green peach aphid: Pale green to yellow (sometimes pink) with long cornicles and three dark lines on the abdomen. | Helix EXtra [4A] (thiamethoxam) | 23 fl oz/cwt seed | |
|
Poncho [4A] (clothianidin) |
3.84 to 10.23 fl oz./cwt seed | ||
| Turnip aphid: Pale gray green with short, swollen cornicles, 1/16-inch long. Winged adults can be recognized by presence of transverse dark bands on last two abdominal segments. | Post-Plant | ||
| Damage: High populations can cause stunting and discoloration of leaves. Feeding by
cabbage aphid can stop terminal growth and reduce yield. Damage is of little consequence after pod formation is completed. |
Ecozin Plus [UN](azadirachtin)] | 15 to 30 fl oz. | No PHI for harvest (Aza-Direct, Molt-X) |
| Threshold Treat rosette stage plants only when aphids exceed 100 to 200 per plant. Treat bud and early bloom stage when infested plants (racemes) exceed 15%. Don’t treat at late flower or pod stage. |
Besiege [28,3](chlorantraniliprole + lambda-cyhalothrin) | 10 fl oz. | Label for cabbage aphid only; 21-day PHI. |
| Brigade 2EC [3](bifenthrin) | 2.1 to 2.6 fl oz (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Annex, Bifenture, Discipline, Empower, Fanfare, Sniper) | |
| Carbine 50 WG [29](flonicamid) | 2.8 oz.(0.089 lb. ai) | 7-day PHI, Apply before aphids reach high levels (Beleaf is also registered for rapeseed) |
|
| Grandevo (Chromobacterium substsugae) |
2 to 3 lb./A | 0-day PHI | |
| Hero [3] (zeta-cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) | 35-day PHI for harvest (Steed is another mixture of the same active ingredients) | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz (0.025 lb ai/A) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) |
3.84 fl oz (0.015 lb. ai) | 7-day PHI for harvest or grazing. | |
| Transform WG [4C] (sulfoxaflor) |
0.5 to 0.75 oz (0.016 to 0.023 lb ai/A) | 7-day PHI. Must apply only after petal fall. | |
| Warrior II [3] (lambda-cyhalothrin) |
1.92 fl oz.(0.03 lb. ai) | 7-day PHI for harvest or grazing. |
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comments |
|---|---|---|---|
| Army cutworm | |||
| Gray striped caterpillar that curls up in to a tight “C” when disturbed. Evident from January through March. | Brigade 2EC [3](bifenthrin) | 2.1 to 2.6 fl oz (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Annex, Bifenture, Disci-pline, Empower, Fanfare, Sniper) |
| Damage: Cuts plants at soil line, can kill plants if it eats the growing point. | Hero EW [3] (zeta cypermethrin + bifenthrin) | 2.8 to 5.95 fl oz.(0.025 to 0.053 lb. ai) | 35-day PHI for harvest. (other names: Annex, Bifenture, Discipline, Empower, Fanfare, Sniper) |
| Threshold: 1-2 per foot of row. | Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing. |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) |
1.92 to 3.84 fl oz. (0.0075 to 0.015 lb ai/A) | 7-day PHI for harvest or grazing. | |
| Beet/Fall Armyworm | |||
| Beet armyworm: Green caterpillar, darker above with a white stripe along the side of the body and a small black spot above the second pair of true legs, three pairs of true (thoracic legs) and four pair of abdominal prolegs. | Azadirachtin [UN] | Apply per label. | No PHI for harvest (Aza-direct, Ecozin). |
| Fall armyworm: Brown, green, or largely black striped caterpillar, up to 1.5 inches, with a light-colored inverted “Y” on head. | B. thuringiensis [11] | Apply per label. | No PHI for harvest (Dipel. Javelin, Leipnox, Xentari). |
| Damage: Caterpillars can reduce seedling stand and chew conspicuous, irregular-shaped holes in leaves. | Brigade 2EC [3](bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Bifenture, Discipline, Empower, Fanfare, Sniper, Tailgunner, Tundra) |
| Threshold: Seedling, treat when scouting indicates 1 or more per row-ft. Treat when defoliation becomes severe, and larvae are present. | Confirm 2F [18](tebufenozide) | 8 to 16 fl oz. (0.12 to 0.25 lb. ai) | 14-day PHI. |
| Delta Gold 1.5 EC [3] (deltamethrin) |
0.8 fl oz. (0.009 lb. ai) | 7-day PHI. | |
| Grandevo (Chromobacterium substsugae) | 1 to 3 lb./A | 0 Day PHI. | |
| Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). | |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) |
7-day PHI for harvest. Do not make applications less than seven days apart.
1-day PHI. While beet/fall army-worms are not specifically listed on the label, Vantacor is labeled for use in canola, and can be applied under the 2ee label at the listed rate, which is labeled for beet/fall armyworm on other crops. However, since these pests are not specifically named in canola recommendations, the user assumes all responsibility for the application and results. |
|
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7 Day PHI for harvest or grazing. | |
| Vantacor [28] (chlorantraniliprole) |
1.2 to 2.5 fl oz. (0.045 to 0.065 lb. ai) |
1-day PHI for harvest. |
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comments |
|---|---|---|---|
| Cabbage looper | |||
| Green caterpillar, with a thin white line along each side of the body, three pairs of thoracic legs and three pair of abdominal prolegs. | Azadirachtin [UN] | Apply per label. | No PHI for harvest. |
| Damage: Caterpillars chew conspicuous, irregular-shaped holes in leaves. | B. thuringiensis [11A] | Apply per label. | No PHI for harvest. |
| Threshold: Treat when defolia-tion becomes severe, and larvae are present. | Besiege [28,3](chlorantraniliprole + lambda-cyhalothrin) | 5.0 to 10.0 fl oz. | 21-day PHI. |
| Brigade 2EC [3](bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Annex, Bifenture, Discipline, Empower, Fanfare, Sniper) | |
| Exirel [28] (cyantraniliprole) | 10 to 20.5 fl oz (0.065 to 0.133 lb. ai) | 7-day PHI for harvest, label recommends using an adjuvant. | |
| Grandevo (Chromobacterium substsugae) | 1 to 3 lb./A | 0-day PHI. | |
| Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). | |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7-day PHI for harvest or grazing. |
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comments |
|---|---|---|---|
| Diamondback moth | Diamondback moth is known for developing resistance to many insecticides, especially pyrethroids (Class3 MOA), therefore thorough field scouting and class rotation of insecticides is encouraged. | ||
| Adult moths are light grayish-brown with a white diamond-shaped marking along back when wings are folded. Larvae are slightly tapered at each end and pale green in color. Wriggle rapidly when disturbed. | Azadirachtin [UN] | Apply per label. | No PHI for harvest (Aza-direct, Ecozin). |
| Damage: Larvae feed on all plant parts, preferring the under-sides of older leaves. | B. thuringiensis [11] | Apply per label. | No PHI for harvest (Dipel. Javelin, Leipnox, Xentari). |
| Threshold: No threshold has been established. | Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Bifenture, Discipline, Empower, Fanfare, Sniper, Tailgunner, Tundra) |
| Delta Gold 1.5 EC [3] (deltamethrin) | 0.8 fl oz. (0.009 lb. ai) | 7-day PHI. | |
| Exirel [28] (cyantraniliprole) | 10 to 20.5 fl oz (0.065 to 0.133 lb. ai) | 7-day PHI for harvest, label recommends using an adjuvant. | |
| Grandevo (Chromobacterium substsugae) | 1 to 3 lb./A | 0 Day PHI. | |
| Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). | |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7 Day PHI for harvest or grazing. | |
| Vantacor [28] (chlorantraniliprole) |
1.2 to 2.5 fl oz. (0.045 to 0.098 lb. ai) |
1-day PHI for harvest. |
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comments |
|---|---|---|---|
| False chinch bug | False chinch bugs thrive in hot, dry conditions which makes it more difficult to control them. They are not specifically named on these labels, but can be used at the rates listed. For best results, use highest levels of water carrier for thorough coverage. | ||
| Adults 1/8 inch, long dirty gray, with brown or black markings, piercing mouthparts. | Azadirachtin [UN] | Apply per label. | No PHI for harvest. |
| Damage: Feed in groups. Large numbers may cause wilting of heads or small plants. | Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). |
| Threshold: Flowering: Treat when there is an AVERAGE of 20 to 30 per head. |
Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. |
| Early seed pod: Treat when there is an AVERAGE of 40 to 50 per head. | Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). |
| Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz (0.033 to 0.04 lb. ai) |
35-day PHI for harvest. (other names: Annex, Bifenture, Disci-pline, Empower, Fanfare, Sniper) | |
| Proaxis 0.5 CS [3](gamma-cyhalothrin) | 3.84 fl oz | 7 Day PHI for harvest or grazing | |
| Flea beetle | Planting Time | ||
| Shiny black beetle about 1/16-inch long, jumps when disturbed. |
DynaShield [4A] (imidacloprid) | 10.24 to 25.6 fl oz./ cwt seed | Harvested seed can only be used for industrial purposes, not for edible oil. |
| Damage: Early spring. Feeding damage results in plant tissue that is scraped from leaf and/or small holes chewed in leaves. Can cause delayed development in cool growing conditions. | Fortenza [28](cyantraniliprole) | 20.4 fl oz/ cwt seed | Check labels of seed treatments for crop rotation restrictions. They range from 0 days to 12 months, depending on the insecticide and crop. |
| Threshold: No threshold has been established. | Helix EXtra [4A](thiamethoxam) | 23 fl oz./ cwt seed | |
| Poncho [4A] (clothianidin) | 3.84 to 10.23 fl oz./ cwt seed | ||
| Post-Plant | |||
| Azadirachtin [UN] | Apply per label. | No PHI for harvest. | |
| Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Bifenture, Discipline, Empower, Fanfare, Sniper, Tailgunner, Tundra) | |
| Delta Gold 1.5 EC [3](deltamethrin) | 0.8 fl oz. (0.009 lb. ai) | 7-day PHI. | |
| Hero EW [3] (zeta cypermethrin + bifenthrin) | 2.6 to 5.5 fl oz. (0.025 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). | |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7-day PHI for harvest or grazing. | |
| Exirel [28] (cyantraniliprole) | 7 to 17 fl oz (0.045-0.11 lb. ai) |
7-day PHI for harvest, label recommends using an adjuvant. |
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comment |
|---|---|---|---|
| Harlequin bug | |||
| Black shield-shaped with orange, red and yellow markings. Measures 3/8-inch long. Eggs barrel-shaped and laid in clusters. | Azadirachtin (un) | Apply per label. | No PHI for harvest. |
| Damage: Adults and nymphs pierce stalks, leaves with sucking mouthparts. | Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Bifenture, Discipline, Empower, Fanfare, Sniper, Tailgunner, Tundra) |
| Threshold: No threshold has been established. | Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7-day PHI for harvest or grazing. | |
| Wireworm | Planting Time | May plant field immediately with corn, or canola. 30 post-harvest waiting period for cereal grains, grasses soybeans and dried beans. Four-month waiting period for all other crops. | |
| Hard-shelled, smooth, cylindrical, yellowish to brown worms. Two- to six-year life cycle. | DynaShield [4A] (imidacloprid) | 10.24 to 25.6 fl oz./ cwt seed | Do not use treated seed for feed, food or oil purposes. |
| Damage: Feed on seed, seedling. Cause stand loss. | Helix EXtra [4A](thiamethoxam) | 23 fl oz/cwt seed | Harvested seed can only be used for industrial purposes, not for edible oil. |
| Threshold: Seed treatments are registered for protection against early season damage. Treat if field history indicates a problem. | Poncho [4A] (clothianidin) | 3.84 to 10.23 fl oz./ cwt seed | 30 post-harvest waiting period for planting all crops except winter wheat. |
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comment |
|---|---|---|---|
| Grasshopper | Planting Time | ||
| Damage: Chew leaves. Leaves may have ragged edges or leaf blade may be completely chewed. Small plants may be killed. | Besiege [28,3] (chlorantraniliprol + lambda-cyhalothrin) |
5 to 10 fl oz. | 21-day PHI |
| Threshold: 15-20 per square yard. If nymph populations exceed threshold field borders (25-40 per square yard), treat before they move into canola. See EPP-7196: Grasshopper Management in Rangeland, Pastures, and Crops | Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz (0.033 to 0.04 lb. ai) |
35-day PHI for harvest. (other names: Annex, Bifenture, Disci-pline, Empower, Fanfare, Sniper) |
| Delta Gold 1.5 EC [3](deltamethrin) | 0.8 fl oz. (0.009 lb.ai) | 7-day PHI for harvest. Do not make applications less than seven days apart | |
| Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.0 to 5.5 fl oz. (0.04 to 0.053 lb. ai) |
35-day PHI for harvest (Steed is another mixture of the same active ingredients). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7-day PHI for harvest or grazing. | |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Vantacor [28] (chlorantraniliprole) |
1.2 to 2.5 fl oz. (0.045 to 0.098 lb. ai) |
1-day PHI for harvest. | |
| Lygus Bug | Planting Time | ||
| Several species. Generally oval, about ¼ inch long, brown with some yellow or reddish mark-ings. | Azadirachtin (UN) | Apply per label | No PHI for harvest (Aza-direct, Ecozin) |
| Damage: Feed on develop-ing seeds, flowers, and leaves. Feed on buds. Thresholds are for infestations before or during petal fall. | Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) |
35-day PHI for harvest. (other names: Bifenture, Discipline, Empower, Fanfare, Sniper, Tail-gunner, Tundra) |
| Threshold: North Dakota thresholds are 15 per 10 sweeps before petal fall, and 20 per 10 sweeps after petal fall. | Delta Gold 1.5 EC [3](deltamethrin) | 0.8 fl oz. (0.009 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7-day PHI for harvest or grazing. | |
| Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| White Grub | Planting Time | ||
| Large, “C” shaped grub with a white body and a brown head. | DynaShield [4A] (imidacloprid) | 10.24 to 25.6 fl oz./ cwt seed | Do not use treated seed for feed, food or oil purposes. |
| Damage: Grubs feed on roots of seedling plants. Damage poten-tial is dependent on planting date and speed of growth of the plant. | Helix EXtra [4A](thiamethoxam) | 23 fl oz/cwt seed | Harvested seed can only be used for industrial purposes, not for edible oil. |
| Threshold: Seed treatments are registered for protection against early season damage Treat if field history indicates a problem | Poncho [4A] (clothianidin) | 3.84 to 10.23 fl oz./ cwt seed | 30 post-harvest waiting period for planting all crops except winter wheat. |
Pre-harvest Intervals and grazing restrictions
| Azadirachtin (neem) | 0-day PHI for harvest |
|---|---|
| Bacillus thuringiensis | 0-day PHI for harvest |
| Besiege | 21-day PHI |
| Brigade | 35-day PHI for harvest. |
| Carbine | 7-day PHI for harvest |
| Delta Gold | 7-day PHI for harvest |
| DynaShield | Harvested seed can only be used for industrial purposes, not for edible oil. |
| Exirel | 7-day PHI for harvest |
| Fortenza | Wait 30 days before applying a follar application of cyantraniliprole or other group 28 product |
| Grandivo | 0-day PHI |
| Hero | 35-day PHI for harvest. |
| Helix EXtra | No PHI listed. Do not graze |
| Lumiderm | Wait 30 days before applying a follar application of cyantraniliprole or other group 28 product |
| Mustang MAXX | 7-day PHI for harvest |
| Prosper FX | No PHI listed |
| Proaxis | 30 Day PHI for harvest or grazing |
| Transform | 14 day PHI |
| Vantacor | 1 day PHI for harvest |
| Warrior | 30 day PHI for harvest or grazing |
* Group numbers in brackets [#] after the insecticide name are used to designate the mode of action of the insecticide according to the classification system developed by the Insecticide Resistance Action Committee, (IRAC) in 2011. It is intended to help in the selection of insecticides for preventative resistance management. If you make multiple applications for a specific pest during a growing season, simply select a registered insecticide with a different number for each application. To further delay resistance from developing, integrate other control methods into your pest management programs
The pesticide information presented in this publication was current with federal and state regulations at the time of revision. READ and FOLLOW all LABEL directions.
| Pest, Damage and Treatment Threshold | Insecticide, Formulation, [MOA Group] and (Active Ingredient) | Rate of Product and (lb active ingredient) per Acre | Comments |
|---|---|---|---|
| Grasshopper | |||
| 1-2 inches, outer wings leathery, inner wings clear or colored. Enlarged hind legs designed for jumping. | Besiege [28,3] (chlorantraniliprole + lambda-cyhalothrin) |
5 to 10 fl oz. | 21-day PHI. |
| Damage: Chew leaves. Leaves may have ragged edges or leaf blade may be completely chewed. Small plants may be killed. | Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Annex, Bifenture, Discipline, Empower, Fanfare, Sniper) |
| Threshold: 15-20 per square yard. If nymph populations exceed threshold field borders (25 to 40 per square yard), treat before they move into canola. | Coragen [28] (chlorantraniliprole) | 3.5 to 7.5 fl oz. (0.045 to 0.098 lb. ai) | 1-day PHI. |
| See EPP-7196: Grasshopper Management in Rangeland, Pastures, and Crops | Delta Gold 1.5 EC [3] (deltamethrin) | 0.8 fl oz. (0.009 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. |
| Hero EW [3] (zeta cypermethrin + bifenthrin) | 4.5 to 5.95 fl oz. (0.04 to 0.053 lb. ai) | 35-day PHI for harvest (Steed is another mixture of the same active ingredients). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7-day PHI for harvest or grazing. | |
| Karate/Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Lygus bug | |||
| Several species. Generally oval, about ¼-inch long, brown with some yellow or reddish markings. |
Azadirachtin (UN) | Apply per label. | No PHI for harvest (Aza-direct, Ecozin). |
| Damage: Feed on developing seeds, flowers, and leaves. Feed on buds. Thresholds are for infestations before or during petal fall. |
Brigade 2EC [3] (bifenthrin) | 2.1 to 2.6 fl oz. (0.033 to 0.04 lb. ai) | 35-day PHI for harvest. (other names: Annex, Bifenture, Discipline, Empower, Fanfare, Sniper) |
| Threshold: North Dakota thresholds are 15 per 10 sweeps before petal fall, and 20 per 10 sweeps after petal fall. |
Delta Gold 1.5 EC [3] (deltamethrin) | 0.8 fl oz. (0.009 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. |
| Karate/Warrior II [3] (lambda-cyhalothrin) | 0.96 to 1.92 fl oz. (0.015 to 0.03 lb. ai) | 7-day PHI for harvest or grazing (other names: Karate, Grizzly Z, Lambda Cy, Lamcap, Paradigm, Province, Silencer). | |
| Mustang MAXX EC [3] (zeta-cypermethrin) | 4.0 fl oz. (0.025 lb. ai) | 7-day PHI for harvest. Do not make applications less than seven days apart. | |
| Proaxis 0.5 CS [3] (gamma-cyhalothrin) | 1.92 to 3.84 fl oz.(0.0075 to 0.015 lb. ai) | 7 Day PHI for harvest or grazing. | |
| White grub | Planting Time | Do not use treated seed for feed, food or oil purposes. | |
| Large, “C” shaped grub with a white body and a brown head. | DynaShield [4A] (imidacloprid) | 10.24 to 25.6 fl oz./ cwt seed | Harvested seed can only be used for industrial purposes, not for edible oil. |
| Helix EXtra [4A](thiamethoxam) | 23 fl oz/cwt seed | 30 post-harvest waiting period for planting all crops except winter wheat. | |
| Poncho [4A] (clothianidin) | 3.84 to 10.23 fl oz./ cwt seed | 30 post-harvest waiting period for planting all crops except corn. |
The pesticide information presented in this publication was current with federal and state regulations at the time of printing. The user is responsible for determining that the intended use is consistent with the label of the product being used. Use pesticides safely. Read and follow label directions. The information given herein is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the Cooperative Extension Service is implied.
Tom A. Royer
Extension Entomologist
Kristopher Giles
Professor and Research Entomologist