Soil Consulting and Crop Consulting in Illinois. You may call it soil testing, soil sampling, or soil health management, but it is more than that. These are my daily or weekly travels in soil and crop consulting and my observations in the agricultural world.
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Saturday, February 6, 2010
Glyphosate Resistance
Glyphosate resistant weeds have been in the spotlight for the past few years. We see it all the time in waterhemp, marestail, lambsquarter, and giant ragweed. The clue is dead weeds next to untouched weeds. Sometimes you will see weeds touched but not dead. I have been saying for a number of years that Roundup corn is not helping the situation. If you have to plant roundup corn because of genetics and seed availability what should you do. Keep using your soil applied herbicide. Try to avoid the roundup. Look for other herbicide resistant genetics such as Liberty Link and 2-4D Resistance which is on the way. Avoid using roundup on the corn ground. Use it only as a last resort. On soybeans, roundup may be the best choice, but spray weeds early, and make sure you use the full rate. Follow-up of need be with more roundup to kill escapes.
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