Source: University of Illinois

No new herbicide active ingredients are currently available for the 2011 growing season, and University of Illinois Extension weed specialist Aaron Hager said he expects this "drought" of no commercialization of herbicides with unique sites of action to continue into the foreseeable future.

"With no new sites of herbicide action being commercialized, it's likely that we will see increased challenges caused by herbicide-resistant weed biotypes and populations this year," Hager said. "However, making accurate predictions about the types of challenges weeds might present during the 2011 growing season is a bit tenuous." 

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