Soybeans: White Mould (Sclerotinia sclerotiorum)

Excerpt from Chapter 2, Field Crop Protection Guide, Order this publication

Table of Contents

1. Foliar Treatment
2. Related links...

Integrated Pest Management Options

Foliar Treatment

White mould is a sporadic disease that thrives under cool, wet conditions during flowering or near harvest. Fields at risk have a history of white mould, good leaf growth, and high populations and more than 48 hrs of continuous wetness and air temperatures between 15°C and 20°C (day and night average temperatures).

In fields with a history of white mould, use non-host crops and avoid growing other host crops such as canola, edible beans, buckwheat and sunflowers for 2-3 years, plant a tolerant variety, although none are tolerant (immune), plant a variety with good lodging resistance and keep sclerotia on the surface through conservation tillage practices.

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Related links...

• Agronomy Guide for Field Crops - Publication 811
  • Soybeans: White Mould
• Diseases
• Soybeans