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Waterhemp has done it again. University of Illinois researchers just published an article in Pest Management Science confirming that waterhemp is the first weed to evolve resistance to HPPD-inhibiting herbicides. "A fifth example of resistance in one weed species is overwhelming evidence that resistance to virtually any herbicide used extensively on this species is possible," said Aaron Hager, U of I Extension weed specialist. Waterhemp is not a weed species that can be adequately managed...
- The navel or umbilicus.
- In Greek archaeology: A central boss, as on a shield, a bowl, etc.