Cereals: Wheat: Fusarium Head Blight (Fusarium graminearum)

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

Table of Contents

1. Integrated Pest Management Options
   • prothioconazole - Proline
   • tebuconazole – Folicur 432 F
2. Related links...

Integrated Pest Management Options

Warm and prolonged wet conditions during flowering are necessary for infection to occur. Avoid planting into corn stubble, since the fungus also causes gibberella stalk rot in corn. Follow soybeans with wheat in the rotation. See the Fusarium forecasting web page to determine the fusarium head blight risk for your area and for current recommendations. Consult your local crop advisor for forecast information.

See Appendix F, Cereal Growth Stages, on page 95.

prothioconazole - Proline

Comments (Days to harvest, label precautions, etc.)
Suppression only. Ground application only. Timing of application is critical. Apply from when at least 75% of the wheat heads on main stem are fully emerged (Zadok’s 59) to when 50% of the heads on the main stem are in flower (Zadok’s 65). Recommended to be used with the registered non-ionic surfactant, Agral 90 or AgSurf at 0.125% vol/vol. Maximum 2 applications/yr (735 mL/ha) with a minimum 7-day interval between applications. Do not apply within 30 days of harvest.

Comments (Days to harvest, label precautions, etc.)
Suppression only. Ground and aerial application. Maximum 1 application/year. Timing of application is critical. The optimum window for application is 1-4 days after 75% of the heads have emerged or cleared the head (Day 0). Ensure thorough coverage of all wheat heads. Recommended to be used with the registered non-ionic surfactant, Agral 90 or AgSurf at 0.125% vol/vol. Maximum 1 application/season. Do not allow livestock to graze or feed green forage to livestock prior to 6 days after treatment. Do not enter treated fields for 12 hr after application. 36 days to harvest.

Related links...

• Agronomy Guide for Field Crops - Publication 811
  • Cereal: Fusarium Head Blight
• Appendix G: Cereal Growth Stages
• Fusarium Forecasting Webpage - OWN
• Diseases
• Cereals