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Milford, Illinois | Weeds resistant to RR are coming no matter how much chemical rotation you use. Case in point: I would use a grass killer and atrazine post applied on corn and an ALS (Raptor) post applied on the soybeans. Did this for many years. Worked great as long as it rained after I applied the corn herbicide: read atrazine here (which it usually didn't.) It finally got to the point that I had atrazine resistant lambsquarter and Raptor resistant giant foxtail. I could have gone to a more expensive program that worked some of the time or use Roundup, which has worked all the time. I don't care what kind of a chemical rotation I use, Roundup resistance will eventually come just like it did with the conventional herbicides. Chemical rotation may put it off for a very few years and maybe it won't. Nobody really knows for sure. Do what you think best and blame any future problems on your neighbor. | |
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I don't "get" RR corn
