
First generation control is suggested in non-corn borer BT cornfields where approximately 50 percent of the plants
are infested with an average of at least one live larva per plant. For second generation control, treat when field inspection reveals an average of
10 to 20 egg masses per 100 plants. Egg mass counts should include both hatched and unhatched egg masses.
This content may not be suitable for states other than Kansas.
Insecticide |
Rate |
Alpha-cypermethrin (Fastac EC) |
2.7 to 3.8 fl. oz./acre |
Bacillus thuringiensis* (various products) 1,2 |
1 & 2 Formulations vary: See labels for application rates |
Beta-cyfluthrin* (Baythroid XL) 1,2 |
1 & 2 0.0125 to 0.022 lbs. a.i./acre (1.6 to 2.8 fl. oz.) |
Bifenthrin* (numerous products) 2 |
2 0.033 to 0.10 lb. a.i./acre (2.1 to 6.4 fl. oz.) |
Chlorantraniliprole (Prevathon) |
14.0 to 20.0 fl.oz./acre |
Chlorpyrifos 15G (numerous products)1 |
1 3.5 to 8 oz. of product per 1,000 ft. of row as a band application |
Chlorpyrifos * (numerous products) 2 |
2 Check label, but generally 1 to 2 pints/acre |
Chlorpyrifos plus gamma-cyhalothrin* (Cobalt) 1,2 |
1 & 2 26 to 38 fl. oz. of product/acre (19 to 38 for first generation if chemigated) |
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)1,2 |
1 & 2 0.018 to 0.022 lb. a.i./acre (1.5 to 1.9 fl. oz.) |
Esfenvalerate* (Asana XL 0.66)2 |
2 0.04 to 0.05 lb. a.i./acre (7.8 to 9.6 fl. oz.) |
Flubendiamide (Belt SC) |
2.0 to 3.0 fl. oz./acre |
Gamma-cyhalothrin* (Proaxis) 1,2 |
1 & 2 0.01 to 0.015 lb. a.i./acre (2.56 to 3.84 fl. oz.) |
Lambda-cyhalothrin* (numerous products) 1,2 |
1 & 2 0.02 to 0.03 lb. of a.i./acre |
Lambda-cyhalothrin plus chlorantraniliprole (Besiege) |
6.0 to 10.0 fl. oz./acre |
Methoxyfenozide (Intrepid 2F) 1,2 |
1 & 2 0.06 to 0.12 lb. a.i./acre (4 to 8 fl. oz.) |
Permethrin* EC (multiple products) 1,2 |
1 & 2 0.15 to 0.2 lb. a.i./acre1 and 0.1 to 0.2 lb. a.i./acre2 |
Permethrin (Pounce 1. 5G) 1,2 |
1 & 2 0.1 to 0.2 lb. a.i./acre (6.7 to 13.3 lb.) |
Spinosad* (Tracer) 1,2 |
1 & 2 1 to 3 fl. oz./acre |
Zeta-cypermethrin* (Mustang MAXX, etc.) 1,2 |
1 & 2 0.017 to 0.025 lb. a.i./acre (2.72 to 4.0 fl. oz.) |
Zeta-cypermethrin+ Bifenthrin (Hero) 1,2 |
1 & 2 4 to 10.3 fl. oz. of product/acre |
₁First Generation – ₂Second Generation
*Several of these products are labeled for chemigation. Read and understand the entire chemigation section on the label before applying any product. In some cases, (Bacillus thuringiensis, chlorpyrifos 4E and microencapsulated methyl parathion) products have preformed better for second generation European corn borer control when chemigated than when applied by ground or aerial equipment.