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

  1. Description
  2. Integrated Pest Management Options
    • Seed Treatment
      • clothianidin - Poncho 250
      • imidacloprid - Gaucho 480 FL
      • thiamethroxam - Cruiser 5 FS
  3. 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).
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...


For more information:
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Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 2 May 2011
Last Reviewed: 10 May 2011