Weed Control in Crown Vetch

Identification

• The University of Missouri Extension lists the use of benefin and trifluralin to control weeds in crownvetch. Herbicidal weed control options are cited as among the best weed control strategies for crownvetch. The chemicals are sold under a variety of different trade names.

Description

• Products containing benefin are pre-emergent herbicides that control weeds by retarding the germination of weed seeds. Benefin is best applied to soil before or right after planting. Trifluralin is a pre-emergent, selective herbicide used widely in grain crops, vegetables and fruit and nut trees.

Targeted Weeds

• Benefin controls grasses and broadleaved weeds including barnyardgrass, crabgrass, fall panicum, carpetweed, knotweeds, purslane and pigweed. Products containing trifluralin are effective in the control of broadleaved weeds and annual grasses.