The U.S. Environmental Protection Agency will extend its approval of controversial weedkillers for another five years, a victory for agriculture companies Bayer AG and BASF SE.
The agency said Tuesday its reapproval of dicamba herbicides, which have been blamed for damaging millions of acres of crops in recent years, would provide clarity to farmers who say they need the spray to combat hard-to-kill weeds. Tighter nationwide rules around when and where the herbicide can be sprayed on farms will help limit injury to crops and…