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

Pub 812: Field Crop Protection Guide > Chapter 4: Cereals > Rye: Powdery Mildew

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

Table of Contents

  1. Integrated Pest Management Options
      • pyraclostrobin – Headline EC
  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.

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
PHI* Do not apply at boot stage and beyond.
Comments Ground and aerial application. For optimal disease control, apply immediately after flag leaf emergencee (Zadok's 37). Do not apply at boot stage (Zadok's 47) and beyond. Maximum 2 applications/yr. 12-hr re-entry period.


Related links...


For more information:
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E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 2 May 2011
Last Reviewed: 18 May 2011