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Tammy from Lake Butler, Fl writes

How much Copper Sulfate do you mix in a one gallon sprayer for duckweed in shallow water of a small pond?

Answer:

Crystal Blue Copper Sulfate is not labeled for duckweed, only algae.  For duckweed control you should instead use a product like Diquat Water Weed and Landscape Herbicide.

Answer last updated on: 04/20/2017

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Crystal Blue Copper Sulfate

Crystal Blue Copper Sulfate

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$36.79

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