Pityogenes Chalcographus

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Pityogenes Chalcographus

 

a beetle of the family Scolytidae (bark beetles). The body is elongated (2–2.9 mm), black-brown, and glossy. It is distributed in Europe and Asia (Siberia); in the north it produces one generation a year, in Middle Europe, two. The beetle develops in the thin bark and sapwood of young, slender, and enfeebled conifers (predominantly spruce). Control measures include thinning forest plantings, felling beetle-infested trees, and. during the beetles’ flying period, setting out “trap” trees and treating plantings with chlororganic and phosphororganic insecticides.

REFERENCE

Vorontsov, A. I. Lesnaia entomologiia, 2nd ed. Moscow, 1967.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.