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Pests/Insect attacking apple and cherry trees

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Question
Insect Photo 1
Insect Photo 1  

Insect Photo 2
Insect Photo 2  
These little black insects come out at night and strip all the leaves off of my one-year-old apple and cherry trees. What are they and how can I control them? Are there good organic management strategies?

Answer
Landon,

This is a beetle, possibly one of the chafer beetles. Unfortunately this image is too dark to id further (plus I'm not terribly familiar with the beetle fauna of China). If it is available in China a good option would be to spray the leaves with an insecticide containing spinosad, which is generally considered organic (see http://www.livingwithbugs.com/spinosad.html for a little background). Sorry I can't be more specific.

Jack DeAngelis

Pests

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Jack DeAngelis

Expertise

I can answer questions in any area of entomology (study of insects, spiders, mites, ticks, and other terrestrial arthropods). Contact me about home and garden insects such as aphids and spider mites, insects that bite and sting such as ticks and wasps, and insects that damage homes such as carpenter ants and termites.

Experience

20 years as university extension entomologist, now retired; currently publish a website about home and garden insects.

Organizations
see www.livingwithbugs.com/resume.html

Publications
see www.livingwithbugs.com/resume.html Fine Gardening magazine

Education/Credentials
Ph.D. in Entomology (the study of insects)

Awards and Honors
see www.livingwithbugs.com/resume.html

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