Weed control in young grapes

Under the conditions of the experiments reported, trifluralin, nitralin, DCPA, bensulide and two commercially unavailable compounds were safest on young grape vines. Fair to good weed control was obtained at safe rates except where resistant weed species were present. Shallow incorporated trifluralin will control weeds at 1/2 to 1 lb per acre rates, and will prove useful for weed control in grape nurseries; however, care should be taken to follow the labeled rates and directions for incorporation. Combinations of the grass herbicides such as trifluralin, nitralin, DCPA, diphenamid and bensulide with simazine and several new herbicides for broadleaf weed control are being studied further.