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Laura from Naples, Fl writes

I want to kill poison Ivy in my SW Florida yard. How much Diquat per gallon of water? Should I add Roundup?

Answer:

Diquat Water Weed and Landscape Herbicide is not labeled for poison ivy.  This product would not be used in home lawns as it will also kill your grass as will RoundUp.  To selectively kill poison ivy without harm to your lawn you would use something like Monterey Weed Wacker.

Answer last updated on: 11/15/2019

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