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NorthCentral Illinois | It can be controlled with roundup, diacamba or 2-4D if you can mow it off in the fall to open up the plant those chemicals will knock it back takes a couple of years for complete control. Non crop areas use the diacamba, 2-4D and do the same mow to open up the plant this allows the herbicide to enter through the injured plant’s cells. | |
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Please identify this weed. How to kill it?