field of soybeans with pigweed
U of A CES Pasture Weed Control Database

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.
Broadleaf Signalgrass, Urochloa platyphylla
Urochloa platyphylla
In bermudagrass forage. Pastora (nicosulfuron + metsulfuron) at 1.0 to1.5 ounces per acre or Panoramic (imazapic) at 4 to 6 fluid ounces per acre. Treat when broadleaf signalgrass is less than 4 inches tall. Add 0.25% nonionic surfactant. Panoramic may cause moderate to severe stunting of bermudagrass.