Scouting time
They are typically a problem along field margins, especially in western Kansas in early plantings. Forage sorghum or weedy borders often harbor summer populations that can migrate to wheat fields in fall. Injury is more severe when beetles are present as plants emerge.
Sampling method
Visually inspect rows along field boarders.
Thresholds
A population of three to five beetles per row foot can kill seedling plants. Since damage is often localized along a field border, spot treatment of affected rows may be sufficient to control populations.
Chemical control
|
Flea Beetle |
|
|
Insecticide |
Rate |
|
Alpha-cypermethrin (Fastac EC) |
0.012 to 0.025 lb. a.i./acre (1.8 to 3.8 fl. oz./acre) |
|
Beta-cyfluthrin (Baythroid XL) |
0.014 to 0.019 lb. a.i./acre (1.8 to 2.4 fl. oz.) |
|
Carbaryl (Sevin) |
0.5 to 1.0 lb. a.i./acre |
|
Chlorpyrifos plus gamma-cyhalothrin (Cobalt Advanced) |
11 to 25 fl. oz./acre |
|
Chlorpyrifos plus zeta-cypermethrin (Stallion) |
5.0 to 11.75 fl. oz./acre |
|
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. a.i./acre |
|
Zeta-cypermethrin (Mustang MAXX, etc.) |
0.011 to 0.025 lb. a.i./acre (1.76 to 4.0 fl. oz.) |
Non-chemical controls
None listed.
Content authors
Disclaimers
This content may not be suitable for states other than Kansas.
