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Tom from Langhorne,pa writes

How much Merit 2F Insecticide should be mixed per gallon of water for spraying roses for Midges?

Answer:

Merit 2F Insecticide is not labeled for midges therefore we would not be able to advise on a proper dilution rateBayer Advanced Dual Action Rose and Flower Insect Killer Continuous Spray is labeled for Midges on roses. 

Answer last updated on: 06/05/2018

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