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Corn: Sap Beetles (Glischrochilus quadrisignatus)

Author: OMAFRA Staff
Creation Date: 29 June 2005
Last Reviewed: 15 June 2009
Pub 812: Field Crop Protection Guide > Chapter 1: Corn > Sap Beetles

Excerpt from Chapter 1, Field Crop Protection Guide, Order this publication

Table of Contents

  1. Description
  2. Integrated Pest Management Options
  3. Related Links...


Description

Adult sap beetles, also known as picnic beetles, are 4 mm (approximately 1/6 in.) in length, dark brown to black with two pale yellow spots on each wing cover.

Image 1. Sap beetles feeding on bruised corn ear. Also known as picnic beetles. Do not cause the primary damage.
Image 1. Sap beetles feeding on bruised corn ear. Also known as picnic beetles. Do not cause the primary damage.

Integrated Pest Management Options

Not an economic pest but can carry Fusarium. Chemical control is not recommended


Related Links...

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