What Are Some Treatments for Asian Longhorned Beetles?


Quick Answer

As of 2015, no treatment exists for trees already infested by Asian longhorn beetles. Infested trees must be removed immediately to prevent the beetles from spreading. Communities at risk of infestation may use pesticides to quarantine infested areas, but the pesticides do not work on trees that are already infested.

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Full Answer

Asian longhorn beetles can infest several types of hardwood trees including maples, elms, willows and birches. When an infestation is reported, pesticides must be applied to vulnerable trees within at least a 1/8 mile radius around the infested area. Infested trees are usually also removed and destroyed.

The primary pesticide used is imidacloprid, which is injected into either the trunks or soil of vulnerable trees. The pesticide spreads through the tree and kills beetles that attempt to eat it, thereby limiting the spread of the beetles. Imidacloprid, which has been tested in America and China, has proven the most effective pesticide in limiting the spread of these beetles. It is also used in the production of rice, potatoes and some vegetables and fruits.

The most effective way to get rid of Asian longhorn beetles is to prevent them from spreading. Report infested trees at asianlonghornbeetle.com, and do not transport firewood as it may contain live beetles or their eggs.

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