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Stored Grain: Lesser Grain Borer (Rhyzopertha dominica)

Author: OMAFRA Staff
Creation Date: 04 July 2005
Last Reviewed: 15 June 2009
Publication 812: Field Crop Protection Guide > Chapter 7: Stored Grain > Lesser Grain Borer

Excerpt from Chapter 7, Field Crop Protection Guide, Order this publication

Table of Contents

  1. Integrated Pest Management Options
  2. Related links...

 

Lesser grain borer's head is turned downward and covered by a large hood (prothorax). A must odour is often associated with this pest.
Lesser grain borer's head is turned downward and covered by a large hood (prothorax). A must odour is often associated with this pest.

 

Integrated Pest Management Options

The key to controlling stored-grain insects is prevention through good sanitation and storage practices. See OMAFRA Publication 811, Agronomy Guide for Field Crops, for more information on stored grain insect management.

Fumigant

aluminum phosphide – Fumitoxin, Phostoxin, Gastoxin
  Fumitoxin Phostoxin Gastoxin
Active ingredient aluminum phosphide aluminum phosphide aluminum phosphide
Trade name Fumitoxin Phostoxin Gastoxin
Rate of pellets/100 m3 (product) 880-2,560 pellets 880-2,560 pellets 880-2,500 pellets
Rate of tablets/100 m3 (product) 250-500 tablets 250-500 tablets 180-500 tablets

Comments
Must be applied by a professional licensed applicator. Do not fumigate below 5°C (40°F). Exposure to moist air or liquids releases flamable and toxic phosphine gas. Ensure bin is as tightly sealed as possible. Not to be used for vacuum fumigations. See label for minimum length of pest exposure periods at various temperatures.

 

Related links...

 

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