Thresholds
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
|
Insecticide |
Rate |
|
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 |
Content authors
Disclaimers
This content may not be suitable for states other than Kansas.
