When Don Morse began growing cover crops, one of his main goals was to tackle the growing populations of marestail (horseweed) and waterhemp that defied traditional control measures. “I can give you a ...

Central Illinois corn farmer Jerry McCulley refills his sprayer with the weed killer glyphosate on a farm near Auburn. A handful of hardy weeds have adapted to survive glyphosate — sold as Roundup and ...

CHAMPAIGN, Ill. — When the weed killer Roundup was introduced in the 1970s, it proved it could kill nearly any plant while still being safer than many other herbicides, and it allowed farmers to ...