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Xiphydria prolongata

Woodwasp Xiphydria prolongata

Description

The size of the imago is 6 to 18mm, and the rear part of the abdomen is reddish. The emergence occurs roughly from May. After mating, the females lay eggs in crevices of the bark. Hatched larvae feed in all directions and live in symbiosis with fungi of the Daldinia genus, which accelerate wood decomposition. The larvae have a characteristic spine at the end, and their feeding process lasts almost the entire year. Therefore, the generation is annual, and in the spring of the following year, individuals of a new generation emerge again.

Symptom

Holes of various diameters in branches and smaller trunks filled out with sawdust.

Tree Species: Poplar, Willow

Part of a plant- attacked: Tree trunk

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes