Italian ryegrass control has become increasingly difficult as new biotypes resistant to the commonly used herbicides continue to spread. The newest chemistry in the battle against Italian ryegrass in wheat is pyroxasulfone (Zidua and Anthem Flex herbicides). See results from the latest WSU field study looking at the effect of application timing on Italian ryegrass control with Zidua SC in this Timely Topic.
Endowed Chair in Small Grains Extension and Research, Weed Science
Crop & Soil Sciences
PO Box 646420
Washington State University
Pullman, WA 99164-6420
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