Western Corn Rootworm (Kansas Corn)

Chemical control

Insecticide

Rate

Alpha-cypermethrin (Fastac EC)

2.7 to 3.8 fl. oz./acre

Beta-cyfluthrin (Baythroid XL)

0.0125 to 0.022 lbs. a.i./acre (1.6 to 2.8 fl. oz.)

Bifenthrin (numerous products)

0.033 to 0.10 lb. a.i./acre (2.1 to 6.4 fl. oz.)

Carbaryl (Sevin)

1 lb. a.i./acre

Chlorpyrifos (numerous products)

Check label, but generally 1 to 2 pints/acre

Chlorpyrifos plus gamma-cyhalothrin (Cobalt)

13 to 26 fl. oz. of product/acre

Chlorpyrifos plus zeta-cypermethrin (Stallion)

9.25 to 11.75 fl. oz./acre

Cyfluthrin (Tombstone)

0.025 to 0.044 lb. a.i./acre (1.6 to 2.8 fl. oz.)

Deltamethrin (Delta Gold)

0.018 to 0.022 lb. a.i./acre (1.5 to 1.9 fl. oz.)

Dimethoate (Dimethoate or Dimate)

2/3 to 1 pt./acre

Esfenvalerate (Asana XL 0.66)

0.03 to 0.05 lb. a.i./acre (5.8 to 9.6 fl. oz.)

Gamma-cyhalothrin (Proaxis)

0.01 to 0.015 lb. a.i./acre (2.56 to 3.84 fl. oz.)

Lambda-cyhalothrin (numerous products)

0.02 to 0.03 lb. of a.i./acre

Lambda-cyhalothrin plus chlorantraniliprole (Besiege)

6.0 to 10.0 fl. oz./acre

Methomyl (Lannate)

0.225 to 0.45 lb. a.i./acre (12 to 24 fl. oz.)

Permethrin EC (Multiple Products)

0.1 to 0.2 lb. a.i./acre

Zeta-cypermethrin (Mustang MAXX, etc.)

0.017 to 0.025 lb. a.i./acre (2.72 to 4.0 fl. oz.)

Zeta-cypermethrin + Bifenthrin (Hero)

4 to 10.3 fl. oz. of product/acre

 

 

Corn Rootworm Planting-time Soil Insecticides Recommended in Kansas Where Corn Follows Corn

 

 

Formulated

Product per

 

Insecticide

Product

1,000 row feet₁

Comments

Bifenthrin

Capture LFR

0.49 oz.

Apply as a 5- to 7-inch band over an open seed furrow. Apply in a minimum of 3 gallons of finished spray per acre. Recommended for both in furrow and T-band.

Chlorethoxyfos

Fortress 2.5 G Fortress 5G

7.5 to 9 oz.

Apply as a T-band or in-furrow. Incorporate with tines, chains, or suitable equipment. Fortress 5G can only be applied through the SmartBox™ system.

Chlorpyrifos

15G Numerous products 4E Numerous products and Lorsban Advanced

8 oz. 2.4 fl. oz.

Apply as a T-band over an open seed furrow over the row behind the planter shoe, in front of the press wheel. Reduction in cutworms may occur. Apply with a flat fan nozzle behind the planter shoe, in front of the press wheel, in a 5- to 6-inch band centered over the open furrow. Apply in a minimum spray volume of 5 gallons per acre.

Gamma-cyhalothrin

Proaxis

0.66 fl. oz.

Apply as a 5- to 7-inch T-band across the open seed furrow, or as a band behind the press wheel, or in-furrow in a minimum of 3 gallons per acre. Maximum use rate of 0.045 lb a.i./acre at planting is reached in 30-inch rows. 

Lambda-cyhalothrin

Warrior w/ Zeon Technology

0.25-0.45 fl.oz.

Apply as a 5- to 7-inch T-band across the open seed furrow, or as a band behind the press wheel, or in-furrow in a minimum of 3 gallons per acre. Maximum use rate of 0.09 lb a.i./acre in planting is reached at 30-inch rows.

Phorate

Phorate or Thimet 20G

6 oz.

Apply in a 7-inch band behind planter shoe, in front of or behind the press wheel, and lightly incorporate. Do not place Phorate granules in direct seed contact. Thimet is distributed in the Lock ‘n’ Load closed handling system. 

Phosphorothionate + cyfluthrin

Defcon 2.1 G

6.7 oz.

Apply in a 7-inch band over the row behind the press wheel with incorporation.

Tebupirimfos + cyfluthrin

Aztec 2.1 G Aztec 4.67 G

6.7 oz.

Apply as a 7-inch band over the row (incorporated with tines, chains or suitable equipment), as a T-band over the row (may be incorporated), or as an  in-furrow application. All applications should be made behind planter shoe, and in front of the press wheel. No plantback restrictions.

Tefluthrin

Force 3G Force CS

3.5 oz/20" row spacing; 2.5 oz/15" row spacing.

Place granules in a 7-inch wide band over the row behind the planter shoe, in front of or behind the press wheel. Granules must be incorporated. Apply as a T-band or in-furrow. T-band application must be incorporated.

Terbufos

Counter 15G

6 - 8 oz.

Apply in a 7-inch band behind planter shoe and in front of or behind press wheel and lightly incorporate. May also be applied in-furrow. Counter is distributed in the Lock ‘n’ Load closed handling system.

 

Corn Seed Treatment

Clothianidin (Poncho 250 and 1250)

A systemic neonicotinoid insecticide labeled at1.25 mg. a.i./kernel. To be applied using commercially available equipment designed for seed treatment.

Clothianidin (Poncho/VoTivo)

Listed under Southern Corn Rootworm/To deliver 0.50 mg ai/seed of clothianidin: Use PONCHO/VOTiVO at 2.7 fl oz / 80,000 seeds Do not apply more than 0.5 mg ai of clothianidin per seed through the application of PONCHO/VOTiVO.

Imidacloprid (Axcess)

1.34 mg. ai/kernel. In areas of heavy to severe corn rootworm populations, protection will not be adequate. Use only in areas of light to moderate corn rootworm populations. Consult your State Agricultural Extension Service on levels of corn rootworm populations.

Thiamethoxam (Cruiser 5FS)

apply Cruiser 5FS at a rate to achieve 1.25 milligrams thiamethoxam per kernel (each fluid ounce of Cruiser 5FS contains 17.7 grams thiamethoxam

 

 

 

 

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Disclaimers

This content may not be suitable for states other than Kansas.