A significant number of non-dicamba tolerant soybean fields are showing symptoms characteristic with dicamba injury again this summer despite new label requirements aimed at reducing off-target injury, according to Prashant Jha, Iowa State University weed specialist.
“This is injury consistent with what we have seen in prior years in Iowa and other states in the Midwest,” he said.

Affected soybeans with low levels of dicamba exposure are likely to outgrow the injury following recent rains that fell over parts of the state, Jha said.