Xyleborus monographus
Mediterranean oak borer
It attacks various deciduous trees but primarily oaks. The brood gallery system is produced, as a rule, only by one female. The chamber branches off in an antler-like shape in one level vertical to the trunk axis. The larvae feed only on gallery fungi and do not widen the brood galleries. The beetles fly onto fresh stumps and trunks of weakened, dying or recently dead trees. It is commoner in warmer locations.
Galleries in wood.
Tree Species: Oak
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, More than 5 cm depth, 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: Branches and twigs, Diameter 50+, Diameter from 10 up to 50 cm, Diameter up to 10 cm
Wood discoloration: Yes
Exit holes: Round
Pest subcategory: Wood-boring insect
Similar pests
Platypus cylindrus
Agrilus biguttatus
