Japanese Maple Trees
Q.

Japanese Maple problems

Anonymous added on July 8, 2015 | Answered

There is a white cottony substance on the leaves and branches. Guessing tree is about 15 years old. How do I treat?

    A.
    A.Answers to this queston: Add Answer
    Downtoearthdigs
    Certified GKH Gardening Expert
    Answered on July 9, 2015

    It sounds like you have either mealybugs or possibly scales, which are closely related to mealybugs and are an occasional problem on maples. One of the most common is cottony maple scale. The insect forms a cottony mass on the lower sides of branches. Scales are usually controlled with horticultural oil sprays. Neem oil is also effective. Here is more iinformation: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
    https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
    https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm

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