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Tom from Fowler, Michigan writes

How much Sonar Aquatic Herbicide is needed to treat a 3 acre pond?

Answer:

When using Sonar Aquatic Herbicide to treat a pond the amount needed can very depending on the average water depth of the treatment site in feet. There is a chart on page 3 of the product label that shows how many quarts are needed per acre based on that water depth.

Application rates are provided in ounces or quarts of Sonar A.S to achieve a desried concentration of the active ingredient in parts per billion (ppb).The maxium application rate or sum of all applications rates is 90 ppb in ponds and 150 ppb in lake, reserviors and static canals per annual growth cycle. 

Answer last updated on: 09/28/2016

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