The Idaho Wheat Commission will be presenting a web-based grower education seminar (webinar) on “Glyphosate Product Performance.” The webinar will be approximately one hour. Participation is free! Log onto the website at http://connect.cals.uidaho.edu/wheat (requires Adobe Flash Player which is installed on most computers) and enter your name as a participant.
• Wednesday, April 10 at 8:00 a.m. MDT – Guest Presenter: Donn Thill, Professor Weed Science, University of Idaho.
The Webinar will provide the viewer with a brief history on the herbicide glyphosate, followed by some general facts about glyphosate uptake, movement and breakdown in plants. Because uptake of glyphosate by plants is the rate-limiting step, Thill will present some information on how plant leaf surfaces and herbicide spray droplets affect herbicide uptake. The rest of his presentation will focus on factors that affect the performance of glyphosate, which include project formulation, weed species and size, spray additives, water quality, spray volume, spray nozzle type, environment, time of day when the herbicide is applied, rainfall, dew, dust and tire tracks, and resistant weeds.
Thill is a Professor of Weed Science, and Associate Dean and Director of the Idaho Agricultural Experiment Station at the University of Idaho. He is a Fellow of the Weed Science Society of America. Donn has focused his research on herbicide resistant weeds; weed management in dry land small grain cropping systems; herbicide persistence and weed biology.