|Oak trees with cupped leaves, a sign|
of dicamba damage.
(MCIR photo by Darrell Hoemann)
Complaints about damaged oak trees have come from Iowa, Illinois and Tennessee. Retired University of Illinois biologist Lou Nelms says he's documented damage to oaks and has filed complaints with the state Department of Agriculture. He told Hettinger that he's seen signs of pre-planting damage to plants from dicamba for 40 years.
Monsanto and BASF have said that crop damage is caused by improper use of dicamba, but don't deny that it caused the damage. "But, in the cases of oak tree damage, internal Monsanto emails indicate that the company has tried to shift blame away from dicamba to other pesticides," Hettinger reports.
The Environmental Protection Agency considered a ban on dicamba, but is now leaning toward allowing its use, but with more restrictions aimed at making it safer. Some states have restricted its use.