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Bob from Pa. writes

Will Hi-Yield Grass Killer Post-Emergent Herbicide kill stilltgrass without killing switchgrass that it's used on?

Answer:

Hi-Yield Grass Killer Post-Emergent Herbicide is a grass killer that is labeled to kill annual and preineal grasses in and around vegetables, gardens, trees, shrubs, ornamentals and ground covers. It is not labeled for use on lawns.  Additionally, it is not labeled to treat for Japanese stiltgrass.  

Answer last updated on: 07/22/2019

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