An Iowa State University Extension weed specialist says EPA’s changes to the dicamba label have not alleviated all of his concerns about volatility.
Bob Hartzler says the biggest change is requiring the use of a volatility-reduction agent. But he says the jury is still out on the effectiveness of those new buffering agents.
“They look good in small-scale trials that the universities have looked at. But small-scale trials are completely different than when you start spraying a product over fields that are a couple hundred acres in size,” Hartzler says.
