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Lucky from Sumter, Sc writes

Will Hi-Yield Killzall Aquatic Herbicide kill koi fish?


While Hi-Yield Killzall Aquatic Herbicide is labeled for use around aquatic areas, we cannot tell you for certain that it is safe to use in or around koi ponds. We recommend contacting a local Koi expert for recommendations or consulting with the County Cooperative Extension Office or recommendations. 


Answer last updated on: 06/17/2021

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