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How Is Malathion Used to Treat Scale on a Red Maple Tree?
- 1). Mix 2 to 2 1/2 tbsp. malathion with 1 gallon of water in a sprayer. The amounts depend on the type of scale you are treating and on the size tree you are treating. Consult the label for detailed instructions.
- 2). Tighten the lid on the sprayer and agitate to thoroughly mix the oil with the water.
- 3). Spray the tree that is infected with the scale, agitating the sprayer continuously to keep the oil solution mixed well. Be sure to spray all scale present, as the oil must come into contact with the insects to be effective.
- 4). Repeat treatments up to three times every 10 to 14 days in order to kill all life stages of the scale.
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