Hel from Downingtown, Pa writes
A pre-emergent herbicide such as Pendulum Aqua Cap would help with prevention but will not treat actively growing Japanese Stiltgrass. We would suggest a selective post-emergent such as Acclaim. Acclaim Extra is a selective post-emergence herbicide that controls annual and perennial grasses in turf including Japanese Stiltgrass. Please refer to the product label for specific applications to your turfgrass.
Answer last updated on: 02/10/2023
