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Photo of Asian longhorned beetle, an invasive forest pest

Asian Long-Horned Beetle Control

These invasive beetles kill hardwood trees. Learn to identify their signs and help keep them out of Missouri.

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Photo of an Asian longhorned beetle male, specimen

Asian Longhorned Beetle

Anoplophora glabripennis
Learn how to identify this invasive, potentially devastating insect! An unwanted arrival from Asia that's now living in parts of the United States, the Asian longhorned beetle could destroy millions of acres of American hardwoods. Report any sightings immediately.

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Photo of Asian longhorned beetle, an invasive forest pest

Asian Longhorned Beetle

As of August 2011, this invasive Asian beetle has not been found in Missouri. Left undetected, the tunneling of this insect will cause trees to wither and die. If you think you have found an Asian longhorned beetle in Missouri, please report it as quickly as possible.

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Photo of an Asian longhorned beetle male, specimen

Asian Longhorned Beetle (Adult Male)

The invasive Asian longhorned beetle (ALB) is shiny black with white spots. The antennae are long and have alternating bands of black and white. The antennae are usually 1 to 2 times greater than the length of the body. The upper sections of the legs are whitish to blue. The ALB should not be confused with the cottonwood borer, a native longhorned beetle, which has a more even mix of black and white patterns on its body and has solid black antennae.

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Photo of an Asian longhorned beetle larva, held in someone's fingers

Asian Longhorned Beetle Larva

ALB larvae are yellowish-white, wormlike, cylindrical, and fleshy, with a varied texture on the underside. While young, larvae tunnel beneath the bark and feed on the inner bark of tree branches and trunk. As they grow, they tunnel deeper into the sapwood. The preferred trees of this invasive species include nearly all our maple species, as well as horsechestnut, black locust, elms, birches, willows, poplars, and green ash.

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Photo of Asian longhorned beetle pupa inside gallery in wood

Asian Longhorned Beetle Pupa

The pupae of Asian longhorned beetles are off-white to light brown and resemble an immature version of the adult with legs and antennae compressed against the body. The Asian longhorned beetle was most likely transported to the United States as pupae and larvae hidden within the wood of pallets and crates.

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Photo of an Asian longhorned beetle on a log near its exit hole

Asian Longhorned Beetle With Exit Hole

The Asian longhorned beetle lives for three years as a larva or pupa before it matures. When the adult beetle emerges, it leaves behind a hole 3/8 inch in diameter. Wood shavings may be found around the base of infested trees or coming out of the hole.

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image of Assassin Bug crawling on a leaf

Assassin Bug

Although many species of assassin bugs are black or brown, some are more brightly colored. They have an elongated head bearing a single, clawlike tube used for piercing and injecting venom into their prey.

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image of Assassin Bug crawling on a leaf

Assassin Bugs

Nearly 200 species in North America north of Mexico
Assassin bugs are usually black or brown, with an elongated head bearing a single, clawlike tube used for piercing and injecting venom into their prey. They are common in Missouri.

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