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Bill from Mi writes

How much Bonide All Seasons Horticultural Spray Oil do I use for crabapple scab and cherry spot?

Answer:

Bonide All Seasons Horticultural Spray Oil is used only for treating the following insects: Thrips, Mites, Sawfly eggs, Scales, Aphids, Mealybugs, Beetle Larvae, Leafminers, Leafhopper, Whitefly, Gall, Adelgids, Scale insects, Red Spider Mites, Bud Moth, Leaf Roller, Red Bug, Codling Moth Larvae, Adult Psylla, Blister Mites. If you are treating cherry spot and crabapple scab, we would suggest using a fungicide such as Bonide Copper Fungicide as a preventative early in the growing season. The best time to apply is two weeks before symptoms normally appear. Alternatively, begin applications when disease first appears, and repeat at 7 to 10 day intervals up to blossom drop. It should be applied at 0.5 to 2.0 fl oz per gallon of water.

 

Answer last updated on: 01/13/2019

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