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Tanbark borer

Tanbark borer

Phymatodes testaceus

A species of Phymatodes, Also known as Common tanbark borer

The larvae of the tanbark borer develop underneath the bark layer of broad-leafed trees and then transform into beetles in the spring. The adult tanbark borer is nocturnal and can run rapidly and fly. It stays under bark during the day and is quite active at night.

General Info About Tanbark borer
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Attributes of Tanbark borer
Colors
Brown
Black
Habitat
deciduous tree species
Adult Food Sources
Leaves, flowers, and bark of deciduous trees like maple, oak, and elm
Larva Food Source
Wood of deciduous trees such as maple, oak, elm, ash, and alder
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Tanbark borer is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
The Tanbark borer can bore into the wood and may damage its structure, or even harm the health of trees. Stay alert if you frequently observe it in your house.
Pollinator
Not reported
Pest-Eating Predatory
Not reported
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Species Status of Tanbark borer
Distribution of these beetle extends from the European Atlantic coastline to the Southern Ural Mountains, from southern Sweden and Norway to North Africa and Syria. It is also distributed throughout Japan and North America.
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Distribution Area of Tanbark borer
Japan, North America
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Adult Size of Tanbark borer
6 - 16 mm
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Predators of Tanbark borer Larvae
Woodpeckers, parasitic wasps, rodents, beetles, ants
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Predators of Adult Tanbark borer
Birds, small mammals, reptiles, spiders, insects
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Interesting Facts About Tanbark borer
Tanbark borer's larvae have a unique ability to digest lignin, a component of wood usually resistant to degradation.
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Scientific Classification of Tanbark borer
Tips for Finding Tanbark borer
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Youth Habitat of Tanbark borer
Forests and Woodlands, Rotting and Decaying Matter
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Adult Habitat of Tanbark borer
Forests and Woodlands
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When is the Best Time to Observe Tanbark borer
For adults: Best found during their active months, typically in late spring through summer. For larvae: Can be found year-round within host wood.
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What is the Best Weather to Observe Tanbark borer
For adults: Prefer warm, dry conditions. High humidity or rain can deter activity. For larvae: Weather is less critical as they are borers and protected within wood.
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How and Where Can You Find Tanbark borer at Different Life Stages
Larva Tanbark borer larvae develop within woody material. To find them, inspect dead trees, logs, or branches for boreholes, sawdust-like frass, or listen for chewing sounds within the wood.
Pupal Tanbark borer pupate inside their wooden tunnels. Locating them involves carefully splitting or peeling bark from dead wood, or using emergence traps on suspect trees to catch adults upon exit.
Adult Tanbark borer adults can be found resting on or near their host plants, often on sunny foliage. Check flowers, tree trunks, and foliage in suitable habitats during warm, dry days.
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Harmful Effects of Tanbark borer
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Structural Pests

The larval stages of tanbark borer tunnel into the wood, compromising the structural integrity over time. Infestations usually go unnoticed until the appearance of exit holes, by which time the timber may have sustained significant internal damage. The aesthetic value and safety of infested items are compromised, requiring costly repairs or replacements. This infestation can lead to weakening of load-bearing structures, potential collapses, and extensive property repair costs.

More Effects of Tanbark borer

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