Comparison of herbicides for early season suppression of mile-a-minute and impact on non-target vegetation

Dinitroanaline herbicides such as pendimethalin, prodiamine, or oryzalin are effective PRE treatments against mile-a-minute (Persicaria perfoliata) or Japanese stiltgrass (Microstegium vimineum). Imazapic was added at a low rate (=1 oz/ac 'Plateau') and demonstrated that application could be delayed until germination while maintaining efficacy and safety to non-target vegetation.