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John from Cato/wis. writes

How many ounces of Garlon 4 Ultra Herbicide per gallon of water to kill buckthorn when sprayed on foliage?


Per the product label for Garlon 4 Ultra Herbicide, Use 4 to 8 quarts of Garlon 4 Ultra in enough water to make 5 gallons or more per acre of total spray. This would break down to using 2.9 - 5.9 oz of Garlon per 1000 sq ft for treating smaller areas. We woud use that amount in at least 1 gallon of water for spot treating brush and woody plants. For smaller annual broadleaf weeds, you can use 0.75 - 2.9 oz per gal of water.

Answer last updated on: 06/02/2023

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