Pteleobius kraatzi
Pteleobius kraatzi
Pteleobius kraatzi is an elm borer that breeds primarily in Ulmus (Ulmaceae), and only rarely on other tree species as for excample in Sorbus (Rosaceae). It attacks both the trunk and smaller branches, creating galleries under the bark. Although the intensity of the infestation is usually not high, its activity can worsen the overall health and aesthetic appearance of weakened elms. This species can transmit dangerous disease Dutch elm disease Ophiostoma novo-ulmi and is distributed widely throughout Europe. Similar to Pteleobius vittatus.
Infested trees exhibit narrow, meandering galleries under the bark with small, round exit holes.
Tree Species: Elm, Rowan, Whitebeam
Part of a plant- attacked: Tree trunk
Pest significance: Less harmful
Pest Category: Insects
Invasive Species: No
Present in EU: Yes
Pest group: Insect
Depth of damages: Under bark only
The extent of damage: Whole trunk
Prevalence in Europe: Rare
Damaged products: Firewood, Fresh timber logs (water still in the sapwood)
Roundwood size: Branches and twigs, Diameter from 10 up to 50 cm, Diameter up to 10 cm
Wood discoloration: No
Exit holes: Round
Pest subcategory: Bark and underbark insect
Similar pests
Hylesinus varius (=fraxini)
Phloeotribus spinulosus
