Byctiscus populi (Linnaeus, 1758)

poplar leaf-rolling weevil

on Populus

Byctiscus populi: leaf rolls

© György Csóka, Hungary Forest Research Institute, Bugwood.org

parasite

The female usually deposits one egg in a leaf roll. A leaf roll consists of one, rarely two leaves that has been rolled into a tight cylinder. Before she has gnawed a wound in the petiole, causing the leaf lo loose its turgor. Generally, the leaf rolls soon drop to the ground. When the larva in the roll is full fed it crawls into the ground to pupate. The new beetle generation appears before the winter.

host plants

Salicaceae, monophagous

Populus alba, x canadensis, deltoides, nigra, tremula, trichocarpa.

Preference for young trees, suckers.

phenology

Univoltine; hibernation as imago.

distribution within Europe

(PESI, 2019).

references

Dieckmann (1974a), Heijerman & Tuinstra (2014a), Rheinheimer & Hassler (2010a), Urban (2012a,b).

mod 3.v.2019