Canola and Mustard: Cabbage Seedpod Weevil (Ceutorhynchus obstrictus)

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Publication 812: Field Crop Protection Guide > Chapter 6: Canola and Mustard >
Cabbage Seedpod Weevil

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Field Crop Protection Guide 2011-2012, Order 2011-2012 publication

Table of Contents

1. Integrated Pest Management Options
• cyhalothrin-lambda – Matador 120 EC, Silencer 120 EC
2. Related links...

 

Integrated Pest Management Options

This is a serious pest in winter canola, though it can also impact early-planted spring canola. Adult weevils lay eggs directly into the seedpod. Pod feeding by the larvae can cause up to 35% yield loss. Apply insecticide to adults prior to egg-laying, as foliar insecticide will not control larvae within the canola pod.

See OMAFRA Publication 811, Agronomy Guide for Field Crops, for further information on pest biology and management options.

Honeybees and other pollinators regularly visit canola and mustard flowers. Keep insecticide application to a minimum while the crop is in bloom to avoid bee-kills. Advise local beekeepers before you apply a pesticide, so that they may take precautions to protect their bees. For more information on preventing bee poisonings, see Bee Poisoning, on page 108.

Active ingredient	cyhalothrin-lambda
Trade name	Matador 120 EC
Rate per hectare (product)	83 mL per ha
Rate per acre (product)	33 mL per ac
PHI*	7
Comments	For adult control only. Ground and aerial application. Apply at bud to early-flowering stage. Maximum 1 application/yr. 24-hr re-entry period.

 

Active ingredient	cyhalothrin-lambda
Trade name	Silencer 120 EC
Rate per hectare (product)	83 mL per ha
Rate per acre (product)	33 mL per ac
PHI*	7
Comments	For adult control only. Ground and aerial application. Apply at bud to early-flowering stage. Maximum 1 application/yr. 24-hr re-entry period.

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Related links...

• Insects
• Canola and Mustard