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  • Help Us Stop the Asian Longhorned Beetle

    Be a tree hero. Look for and report the Asian longhorned beetle.

    See How To Recognize it

  • Find It, Report It, Save Trees

    The best line of defense against this devastating pest is you. take 10 minutes and check your trees for the asian loghorned beetle and any signs of damage it causes.

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Asian Longhorned Beetle What To Look For!

If you suspect an Asian longhorned beetle infestation here are some descriptions to look for:

Twoo black and white asian longhorned beetles in a tree 
1. Adult Asian Longhorned Beetles Individuals are
 ¾ to 1¼ inches long, with jet black body and mottled white 
spots on the back. The long antennae are 1½ to 2½ times 
the body length with distinctive black and white bands 
on each segment. The feet have a bluish tinge.

egg-laying sites female beetle
2. Oval to round pits in the bark. These egg-laying
sites or niches are chewed out by the female beetle, 
and a single egg is deposited in each niche.

maple tree with oozing sap
 3. Oozing sap. In the summer, sap may flow from egg
niches, especially on maple trees, as the larvae feed
 inside the tree.

Accumulation of coarse sawdust around the tree
 4. Accumulation of coarse sawdust around the
base of infested trees, where branches meet the main stem,
and where branches meet other branches. This sawdust is
created by the beetle larvae as they bore into the main tree
stem and branches.

Rounded Holes by Asian Longhorned Beetle
5. Round holes, 3/8 inch in diameter or larger, on the
trunk and on branches. These exit holes are made by adult
beetles as they emerge from the tree.

  • Report any suspected evidence or actual sightings to the Canadian Food Inspection Agency at 1-800-442-2342 or 416-665-5055.
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Learn how to recongnize The Asian Longhorned Beetle Damage


The Asian Longhorned Beetle damages
Trees damaged by the Asian Longhorned Beetle

 About The Asian Longhorned Beetle Damage

The Asian Longhorned Beetle Damage can be difficult to detect when trees are still in leaf, even for experienced surveyors. During fall and winter, the damage to the trunk and branches of trees is much easier to see. Birders, cross country skiers, hikers, or anyone spending time outdoors this fall and winter can help protect the state from Asian longhorned beetle by learning

 how to recognize the signs of an Asian Longhorned Beetle infestation:

  • Try to figure out what kind of tree you are looking at. Asian Longhorned Beetle likes hardwood trees, particularly  maple, but stays away from oak and cherry. It does not attack conifers like pine or spruce.
  • Asian longhorned beetle adults lay their eggs in pits in the bark of the tree. Egg-laying sites, or “oviposition pits,” are ¾ inch across, and look similar to a bite taken out of an apple.
  • The exit holes that the adults leave as they emerge from the tree are about ¾ inch in diameter, and are perfectly round.
  • If you see what looks like an exit hole and it can easily be reached, try to fit the eraser end of a pencil into the hole. If it doesn’t go in at least one inch deep, it’s not an Asian Longhorned Beetle.
  • Asian Longhorned Beetle typically leaves exit holes spread out across a tree, leaving room for each larva to develop. Series of holes together in a line are often caused by woodpeckers or sapsuckers.
 we hope that this article about  The Asian Longhorned Beetle Damage was so helpfull.
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What's the Asian Longhorned Beetle

Black Asian Longhorned Beetle
The Asian Longhorned Beetle

 

Asian Longhorned Beetle Definition:

The Asian Longhorned Beetle (Anoplophora glabripennis) is native to North-East Asia. This destructive insect is a very serious threat to the hardwood trees of North America. Thousands of trees have already been cut down under federal quarantine in the urban forests of New York City and Chicago. The first Asian Longhorned Beetle infestation in Canada was detected in Toronto and Vaughan in September 2003. Since then, the Canadian Food Inspection Agency (CFIA) implemented an intensive eradication program with assistance from the City of Toronto, City of Vaughan, Region of York, Toronto and Region Conservation, Ontario Ministry of Natural Resources, Canadian Forestry Service and United States Department of Agriculture. For more information visit the CFIA website at: www.inspection.gc.ca. You can also find more details at www.toronto.ca/trees in the online version of the “Trees under Threat-the Asian Longhorned Beetle in Greater Toronto” booklet.
This insect has four stages of development: egg, larva, pupa, and adult beetle. After mating, female beetles lay eggs in oval wounds made on the tree bark.  Larvaestart to feed by tunneling through living bark and fresh sapwood into the central heartwood. The egg and larvae are over-wintering stages. Pupationoccurs in the spring near the bark.
The new adult beetlesemerge in July through perfectly round, 1cm wide exit holes. The life cycle varies from 1 to 3 years in living trees, but may take up to 7 years in solid wood packing materials used in overseas shipping. In Toronto’s climate Asian Longhorned Beetle completes its life cycle in one or two years.
Adult beetles are 2 to 3cm long and shiny jet-black with numerous white spots on their backs. Their long black and white antennae are segmented and may be up to 2 ½ times their body length. Adults Asian Longhorned Beetle may be seen outdoors during the warmer parts of the day from summer through late autumn. They are capable of flying, but do not go very far. They are usually seen feeding on tree leaves or branches before mating.

The Asian Loghorned Beetle Description:

The shiny black, bullet-shaped adult is about 1 to 1.5 inches long with irregular sized and shaped white spots. Its black-and-white banded antennae are usually longer than its body. The elongated feet are black with a whitish-blue upper surface. Adults Asian Longhorned Beetle can be seen from late spring through fall depending on climate and geographical location.
Although its size and large mandibles may cause it to appear threatening, the beetle is harmless to humans and pets. Adult females of the Asian Longhorned Beetle use their mandibles to chew a pit and then deposit  an egg into it. Each female lives several weeks and will lay up to 90 eggs. The larva tunnels under the bark, eventually tunneling deep into the tree. Larval tunneling produces frass that consists of feces and wood fibers resembling sawdust. The large, light cream-colored larva that lives entirely within the wood of trees is the most damaging stage of the beetle. Typically, the life cycle of the Asian Longhorned Beetle is completed in one year.

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