Weed Control

Counteract Pre Emergent Herbicide

Adam added on April 3, 2017 | Answered

I would like to know if there is anyway to counteract or neutralize pre emergent herbicides like Preen?

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Certified GKH Gardening Expert
Answered on April 5, 2017

If the pre emergent has been incorporated into the soil and been ingested into the plants, there is nothing you can do.

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