Corn Flea Beetle (Kansas Corn)

Scouting time

Injury is likely to occur on two to four leaf stage corn when cold temperatures slow growth.

Thresholds

Treatments are seldom warranted if populations on two leaf corn remain below four
to five beetles per plant.

Chemical control

Insecticide

Rate

Alpha-cypermethrin (Fastac EC)

2.7 to 3.8 fl. oz./acre

Beta-cyfluthrin (Baythroid XL)

0.8 – 1.6 fluid oz/Acre, 0.007 – 0.013 lb AI/acre

Carbaryl (Sevin 4F)

1 - 2 qts./acre

Chlorpyrifos (Lorsban 4E)

1 - 2 pt./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)

0.013 to 0.025 lb. a.i./acre (0.8 to 1.6 fl. oz.)

Deltamethrin (Decis 1.5EC)

0.012 to 0.018 lb. a.i./acre (1.0 to 1.5 fl. oz.)

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 (Warrior with Zeon Technology)

0.02 to 0.03 lb. of a.i./acre (2.56–3.84 fl. oz./a)

Lambda-cyhalothrin plus chlorantraniliprole (Besiege)

6.0 to 10.0 fl. oz./acre

Permethrin EC (Pounce 3.2EC)

4 to 8 ounces (0.1 to 0.2 pound active) per 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)

2.6 to 6.1 fl. oz. of product/acre

 

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Disclaimers

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