Q.Dethatch Common Periwinkle
I have periwinkle covering a hill in my yard. It is being overridden by Japanese stiltgrass. I am wondering how to get rid of the stiltgrass ?should I dethatch the periwinkle? Thanks for the help. Jim

BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on July 2, 2020
Unfortunately, selective post-emergents will be your best option here. These articles will help:
https://www.gardeningknowhow.com/plant-problems/weeds/using-herbicide-in-gardens.htm
https://www.gardeningknowhow.com/plant-problems/weeds/post-emergent-herbicides.htm
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