... is typically sprayed and absorbed through the leaves, injected into the , or applied to the stump of a tree, or broadcast ... forestry herbicide. Initially patented and sold by in the 1970s under the tradename , its U.S. expired in 2000. ... mode of action is to inhibit an involved in the synthesis of the , and . It is absorbed through foliage ... against both broadleaf and cereal weeds. Soy was the first .