Blister Beetles (Kansas Soybean)


Foliage feeding is generally localized, with only large aggregations causing economic problems. Rarely is more than spot treatment required. Soybean plants can withstand up to 35 percent foliage loss during the blooming period. Foliage loss of 20 percent or more may decrease yields when pods are forming and beginning to fill. After beans are nearly filled, defoliation rarely causes a yield reduction.

Chemical control



Beta-cyfluthrin (Baythroid XL)

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

Carbaryl (Sevin)

 0.5 to 1 lb. a.i./acre

Chlorpyrifos plus gamma-cyhalothrin (Cobalt)

 11 to 26 fl. oz. of product/acre

Chlorpyrifos plus zeta-cypermethrin (Stallion)

 5.0 to 11.75 fl. oz./acre

Cyfluthrin (Tombstone)

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

Gamma-cyhalothrin (Proaxis , Declare)

 0.0125 to 0.015 lb. a.i./acre (3.20 to 3.84 fl. oz.) (See label for Declare)

Lambda-cyhalothrin (numerous products)

 0.025 to 0.030 lb. a.i./acre

Lambda-cyhalothrin chlorantraniliprole (Besiege)

 8.0 to 10.0 fl. oz./acre

Lambda-cyhalothrin plus thiamethoxam (Endigo ZC)

 4.0 to 4.5 fl. oz./acre

Zeta-cypermethrin (Mustang MAXX, etc.)

 0.0175 to 0.025 lb. a.i./acre (2.8 to 4.0 fl. oz.)

Zeta-cypermethrin plus bifenthrin (Hero)

 4.0 to 10.3 fl. oz. of product/acre


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