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Cereals: Rye: Powdery Mildew (Erysiphe graminis f. sp. secalis)

Author: OMAFRA Staff
Creation Date: 04 July 2005
Last Reviewed: 15 June 2009
Pub 812: Field Crop Protection Guide > Chapter 4: Cereals > Rye: Powdery Mildew

Excerpt from Chapter 4, Field Crop Protection Guide, Order this publication

Table of Contents

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

Integrated Pest Management Options

In most cases, powdery mildew has little impact on rye since the crop is very resistant to the disease.

pyraclostrobin – Headline EC
Active ingredient pyraclostrobin
Trade name Headline EC
Rate per hectare (product) 400-600 mL per ha
Rate per acre (product) 160-240 mL per ac

Comments (Days to harvest, label precautions, etc.)
Ground and aerial application. Apply only up to flag leaf fully emerged stage (Zadok's 39). Do not apply at boot stage (Zadok's 47) and beyond. Maximum 2 applications/season. Tank-mixing with insecticide is not recommended, as this fungicide could affect insecticide efficacy.

Related links...

 

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