How do I get rid of Perilla?

As an annual, it can be removed mechanically by taking advantage of its shallow root system. Herbicides, such as 2,4-D (low-volatile ester formulations) or tank-mixtures containing both 2,4-D and dicamba (several formulations) along with a surfactant, provide good control when applied in early spring.

How do you control perilla mint?

Control Methods

Several herbicides are highly effective for controlling perilla mint. Some preemergence options include picloram, aminopyralid, dicamba, and imazapic (Table 1). These treatments should be applied before seedling emergence and just before rain to incorporate the chemical into the soil.