Corn: Corn Flea Beetles
(Chaetocnema pulicaria)
Pub 812: Field Crop Protection
Guide >
Chapter
1: Corn > Corn Flea Beetles
Field Crop Protection Guide 2011-2012, Order
2011-2012 publication
Table of Contents
- Description
- Integrated Pest Management Options
- Seed Treatment
- clothianidin - Poncho 250
- imidacloprid - Gaucho 480 FL
- thiamethroxam - Cruiser 5 FS
- Related links...
Description
Very tiny (1.8mm), black, shiny beetles with elongated hind legs
used for jumping when disturbed

Image 1. Corn flea beetles leave long feeding
scratches running parallel with leaf vein. Vectors of Stewart's
wilt (bacterial leaf blight).
Integrated Pest Management Options
Seed Treatment
Flea beetles are a vector of Stewart's bacterial wilt. It is uneconomical
to spray corn with insecticides to protect against Stewart's wilt
except in seed corn with highly susceptible inbreds.
| Active ingredient |
clothianidin |
| Trade name |
Poncho 250 |
| Rate (product) |
33.3 mL per 80,000 kernels |
| Comments |
For use in commercial seed treatment facilities only.
Seed-applied insecticides can affect seed drop and final plant
stands. Use talc or graphite according to planter recommendations
to ensure planting accuracy. A 30-day plantback interval for
cereal grains, grasses, soybeans and dried beans is required. |
| Active ingredient |
imidacloprid |
| Trade name |
Gaucho 480 FL |
| Rate (product) |
100 mL per 80,000 kernels |
| Comments |
For seed corn only. For use in commercial seed treatment
facilities only. Ensure good coverage.
Seed-applied insecticides can affect seed drop and final plant
stands. Use talc or graphite according to planter recommendations
to ensure planting accuracy. |
| Active ingredient |
thiamethoxam |
| Trade name |
Cruiser 5 FS |
| Rate (product) |
16.7-33.3 mL per 80,000 kernels |
| Comments |
For use in commercial seed treatment facilities only.
Seed-applied insecticides can affect seed drop and final plant
stands. Use talc or graphite according to planter recommendations
to ensure accuracy. Do not graze or feed livestock on treated
areas for 45 days after planting. |
Related links...