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Cereals: Barley: Rust (Leaf - Puccinia hordei, Stem - Puccinia graminis f. sp. tritici)

Author: OMAFRA Staff
Creation Date: 04 July 2005
Last Reviewed: 15 June 2009
Pub 812: Field Crop Protection Guide > Chapter 4: Cereals > Barley: Rust (Leaf and Stem)

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

Table of Contents

  1. Foliar, Stem and Head Diseases
  2. Related links...

Foliar, Stem and Head Diseases

Leaf rust spores are blown in from the U.S. and in most years late-planted fields are most likely to show the disease. Alternate host is barberry. Remove or destroy alternate host from fence rows, etc. Plant early.

azoxystrobin + propiconazole - Quilt

Active ingredient azoxystrobin + propiconazole
Trade name Quilt
Rate per hectare (product) 1.0 L per ha
Rate per acre (product) 406 mL per ac

Comments (Days to harvest, label precautions, etc.)
Ground and aerial application. Apply once between stem elongation (Zadok’s 29–37) and half-head emergence (Zadok’s 49–55). Maximum 1 application/season. 45 days to harvest for grain or straw. Do not harvest for forage. When expecting high disease pressure from stripe rust, use the higher application rate of 1 L/ha.

  Tilt 250 E Bumper 418 EC
propiconazole – Tilt 250 E, Bumper 418 EC
Active ingredient propiconazole propiconazole
Trade name Tilt 250 E Bumper 418 EC
Rate per hectare (product) 500 mL per ha 300 mL per ha
Rate per acre (product) 200 mL per ac 121 mL per ac

Comments (Days to harvest, label precautions, etc.)
Ground and aerial application. Apply at early signs of disease from tillering to head half emerged. Can be tank-mixed with several cereal herbicides. 45 days to harvest.


Related links...

 

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