Cereals: Wheat: Stripe Rust (Puccinia striiformis)

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

Table of Contents

1. Integrated Pest Management Options
• pyraclostrobin – Headline EC
• azoxystrobin + propiconazole - Quilt
• propiconazole – Tilt 250 E, Bumper 418 EC
• tebuconazole – Folicur 432 F
• trifloxystrobin + propiconazole – Stratego 250 EC
2. Related links...

Integrated Pest Management Options

Can be confused with cephalosporium stripe since both will produce a yellow striping (interveinal) that can extend the entire length of the leaf. If rust is the cause, orange-yellow pustules (blisters) can be found, whereas no blistering is found in cephalosporium stripe. Most noticeable in seasons with a prolonged cool spring (3°C-15°C). Symptoms often disappear as temperatures increase.

Comments (Days to harvest, label precautions, etc.)
Ground and aerial application. Apply only up to flag leaf fully emerged stage (Zadoks 39). Do not apply at boot stage (Zadoks 47) and beyond. Maximum 2 applications/season.

azoxystrobin + propiconazole - Quilt

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 and wheat leaf rust, use the higher application rate of 1 L/ha.

Comments (Days to harvest, label precautions, etc.)
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. 45 days to harvest.

Comments (Days to harvest, label precautions, etc.)
Ground and aerial application. Only 1 application/year. Apply only up to flag leaf fully emerged stage (Zadok's 39). Do not apply at boot stage (Zadok's 47) and beyond. Use non-ionic surfactant such as Agral 90 or Agsurf at 0.125% vol/vol. 36 days to harvest.

Before using Folicur for wheat leaf diseases, consider that Folicur can only be applied once/year and has been traditionally used for Fusarium control.

Comments (Days to harvest, label precautions, etc.)
Ground and aerial application. Maximum 2 applications/year. 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. Can be tank-mixed with Buctril M in wheat. 45 days to harvest.

Related links...

• Agronomy Guide for Field Crops - Publication 811
• What is the Risk of Stripe Rust and Leaf Rust in Wheat this Year?
• Diseases
• Cereals