Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Changes in the distribution of some insect species in Lower Silesia.

Abstract

Changes are reported in the distribution of 5 forest pest species in this area of Poland: (1) Ectoedemia liebwerdella, which is spreading through southern Poland; (2) Ips acuminatus, which has spread over a large area of pine [Pinus sylvestris] stands since 1984; (3) Ips sexdentatus which has become numerous since 1985; (4) Dendroctonus micans which used to be only sporadically found; and (5) Hylesinus crenatus, which was only found sporadically in western Poland previously, now colonizes ash [Fraxinus] trees in the Sudetan Mountains up to 880 m altitude - several decades ago its occurrence was limited to 300-400 m altitude.