Cereals: Oats: Septoria Leaf Spot (Septoria tritici)


Pub 812: Field Crop Protection Guide > Chapter 4: Cereals > Oats: Septoria Leaf Spot

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

Table of Contents

  1. Leaf, Stem and Head Diseases
      • propiconazole – Tilt 250 E, Bumper 418 EC
      • trifloxystrobin + propiconazole – Stratego 250 EC
  2. Related links...

Leaf, Stem and Head Diseases

Avoid planting oat after oat or mixed grain. Humid, wet, windy weather promotes disease.

 
Active ingredient propiconazole
Trade name Tilt 250 E
Rate per hectare (product) 500 mL per ha
Rate per acre (product) 200 mL per ac
PHI* 45
Comments Ground and aerial application. Apply at early signs of disease from tillering to head half emerged.

 
Active ingredient propiconazole
Trade name Bumper 418 EC
Rate per hectare (product) 300 mL per ha
Rate per acre (product) 121 mL per ac
PHI* 45
Comments Ground and aerial application. Apply at early signs of disease from the beginning of stem elongation (Zadok's 29-37). If conditions favourable to disease continue, apply again, if necessary, before head is half emerged (Zadok's 49-55). Can be tank-mixed with several cereal herbicides. Maximum 2 applications/yr.

 
Active ingredient trifloxystrobin + propiconazole
Trade name Stratego 250 EC
Rate per hectare (product) 500 mL per ha
Rate per acre (product) 200 mL per ac
PHI* Do not apply at boot stage and beyond.
Comments Ground and aerial application. Do not apply the second application within 14 days of the first. 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/yr. 12-hr re-entry period.

 


Related links...

 


For more information:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 2 May 2011
Last Reviewed: 18 May 2011