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Ross from Dallas, Tx writes

How many ounces per gallon do you recommend for Quasar 8.5 SL?

North Texas DFW Area. Black bark scale on Crape Myrtles


According to the Quasar 8.5 SL Product Label: for control of black scale and other forms of scale and insects on ornamentals you would apply 8.5-16.5 fluid ounces of this product per 100 gallons. This comes out to 0.08 to 0.165 oz per gallon for ornamental applications.  If you are planning to do a bark banding treatment for the scale you would apply 12.5-25.3 fluid ounces per gallon of water in mid Spring between bud break and full leaf expansion.

Answer last updated on: 05/19/2020

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Quasar 8.5 SL Insecticide

Quasar 8.5 SL Insecticide


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