2,4-D LV ester
Rate Use a mixture of 1.5 lb ae 2,4-D, 50 gal water, and 2 gal diesel or a nonionic surfactant for spot treatments.
Time Apply in April or May after rush has made good spring growth.
Remarks Foliage must be thoroughly wet.
Caution Avoid drift to sensitive crops.
Site of action Group 4: synthetic auxin
Chemical family Phenoxy acetic acid
dicamba (Clarity)
Rate 0.75 lb ae/A (1.5 pint/A)
Time Apply any time the plants are actively growing.
Remarks Foliage must be thoroughly wet.
Caution Dicamba will kill clovers and other desirable broadleaf plants.
Site of action Group 4: synthetic auxin
Chemical family Benzoic acid