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David writes

How many ounces of Roundup Custom Aquatic Terrestial Herbicide per gallon to kill cattails?

I used the .75 ratio and it did not kill cattails.

Answer:

Roundup Custom Aquatic Terrestial Herbicide will kill cattail at the rate of 0.75 fl oz per gallon of water. Please see the product label for complete application instructions.

Answer last updated on: 05/21/2018

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