Good idea Gil Gullickson 08/26/2010 @ 10:52am Grant, Good point on crop rotation. I remember talking with the folks at the U of Missouri telling me that one of the first glyphosate resistant weeds--either marestail or waterhemp--cane from a field that had been in soybeans for something like 10 years. so yes, crop rotation is a good cultural tool for mixing things up. Gil Gullickson

an overlooked option... Grant Hildabrand 08/26/2010 @ 9:09am Crop rotation is a tried and true method of controlling herbicide resistant weeds. I'm just saying, don't forget the basics tenets of farming.