field of soybeans with pigweed
U of A CES Pasture Weed Control Database
The Pasture Weed Control Database contains the same information and pictures included in the Miscellaneous Publication MP-522. The weeds are arranged alphabetically by scientific name because common names vary. For example, in Arkansas, Eupatorium capillifolium, is variously called, Dogfennel, Cypress Weed, and Texas Cedar.

Buffalo Bur, Solanum rostratum

Solanum rostratum

Buffalo bur has yellow flowers about 1 inch in diameter and many sharp spines. It is most common in northwest Arkansas. Spray early with GrazonNext HL at 1.5 pts/A or Grazon P+D at 2 pts/A.