Description
Latin Name: Tetropium fuscum
Lure: a 4×6″, 8 mil pouch with 4.5x2x1 foam
Lure Active Ingredient: (-)alpha pinene, (-) beta pinene, (+)3carene, (+)limonene, and alpha terpinolene
Field Life: 45 days
Trap to Use: Panel Trap
Monitoring Strategy: Contact your local forester for more information on forest management practices.
Cultural and Physical Control: Limited. Do not moved regulated materials such as spruce firewood out of any Containment Area without prior approval. Use local firewood.
Distribution: Europe, Northern Asia, and recently introduced into Canada
Hosts: Spruce and Pine trees, but Fir, Larch, and other hardwood trees can be preyed upon
: Adult moth: Adult is a small pale brown to black beetle about 8-17 mm in length at maturity. Two long reddish antennae and 2-3 stripes run the length of the wing cover.
Larvae: Larvae are yellowish-white and at maturity reaching a length of about 28 mm.
Eggs: Eggs are greenish-white and very small (about 1 mm).
Life Cycle: Females lay their eggs on the bark of host trees. Between 10-14 days later, the hatched larvae burrow into the tree. The larvae reach maturity in about two months and will be a maximum of 1 inch in length. Prior to pupation, the larvae then tunnel into the phloem where pupation occurs. The pupation stage lasts approximately two weeks after which the adult beetle chews an exit hole in the bark. It is not known whether there are one or two generations of the beetle per season. It is believed that the beetle larvae overwinter within the tree.
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