Tetropium gabrieli
Larch longhorn beetle
Adults are black, 8-18 mm long, active from May through July. The females oviposit into bark crevices. The larvae, hatched after 10-14 days, make their galleries up to 1 cm in diameter and penetrate deeper into the wood (5-6 cm) to pupate. The development takes twelve months. Larvae feed under or in the bark of trees, in standing or fallen trunks and in thick branches. T. gabrieli attacks and kills weakened trees in a very short time. Technical damage is caused by the excavation of pupal chambers up to 6 cm deep in the wood.
Galleries under the bark and in the wood.
Tree Species: Larch
Part of a plant- attacked: Tree trunk
Pest significance: Harmful
Pest Category: Insects
Invasive Species: No
Present in EU: Yes
Pest group: Insect
Affected part of wood: Sapwood
Depth of damages: Bark, Under bark only, Up to 0,5 cm depth, Up to 2 cm depth, Up to 5 cm depth
The extent of damage: Whole trunk
Prevalence in Europe: Common
Damaged products: Firewood, Fresh timber logs (water still in the sapwood), Furniture, Lumber, boards and prisms, Wooden house constructions
Roundwood size: Diameter 50+, Diameter from 10 up to 50 cm, Diameter up to 10 cm
Wood discoloration: No
Exit holes: Oval
Pest subcategory: Wood-boring insect
Similar pests
Rosalia alpina
Acanthocinus aedilis
