Dicamba

Farmers in Indiana and across the nation are using more of a powerful, but controversial, weed killer this year — dicamba.

Dicamba has been used since at least the 1960s, mostly on corn. Last year, though, the Environmental Protection Agency approved a new type of dicamba to use on cotton and soybean plants genetically engineered to resist the weed killer.

Don Lamb, who operates an 8,800 acre farm in Lebanon, says the new dicamba has created a problem.