Japanese Maple Trees

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?


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ANSWERS
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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