Agricultural News
Italian Ryegrass Resistance Issues Hitting Oklahoma Wheat Production
Fri, 22 Jan 2010 5:52:48 CSTOne of the Poster Session Presenters at the Pan America Weed Resistance Conference this week in Miami Beach was Dr. Joe Armstrong of Oklahoma State University. His presentation was on work that he and several others at Oklahoma State University have done in the area of Italian Ryegrass and the resistance that we are seeing to several key herbicides that help with control of grass weeds.
Dr. Armstrong says that 2009 checks show that where Italian Ryegrass was found in fields in Oklahoma- 50 to 90% of the ryegrass that was checked showed some level of resistance to herbicides that are in the ALS Inhibitor classification. He says that if Italian ryegrass is a significant weed in your wheat- the chemical options you have are limited. He says the strategy of crop rotation on those fields where these weeds are found may be your best option- and using a crop like winter canola- especially the Roundup Ready Canola- gives a wheat grower the best chance to break the weed cycle in that field.
We talked with Dr. Joe Armstrong at the Pan America Weed Conference that was sponsored by Bayer Crop Science in Miami Beach- click on the Listen Bar below to hear our full conversation about some of the resistance problems that winter wheat producers are running into in their Oklahoma wheat fields.
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