Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (475 KB)

Title: Exotic scolytids of the Great Lakes region

Author: Haack, Robert A.;

Date: 2001

Source: Newsletter of the Michigan Entomological Society. Vol. 46, no. 3 (Aug. 2001).:p. 6-7.

Publication Series: Scientific Journal (JRNL)

Description: There are at least 44 exotic species of Scolytidae established in North America north of Mexico, of which 16 species can be found in the Great Lakes region (see Table). Scolytids occupy many niches, but the two most common groups are the true bark beetles and the ambrosia beetles (Poland and Haack 1998). Adult bark beetles, as their name implies, construct galleries under the bark of woody plants. Eggs are laid in niches along the gallery walls. The larvae feed primarily on the inner bark (phloem)tissue, then pupate, and emerge as adults. Ambrosia beetles typically tunnel into the wood (xylem), and construct simple to many-branched galleries Larvae develop in the galleries and feed on fungi("ambrosia") that grows along the gallery walls. Other species of Scolytidae construct galleries and lay eggs in seeds, cones, twigs, and roots.

Keywords: Scolytidae, Forest pests, Insect pests, Exotics, Lake States of USA

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
  • Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, if you notice any errors which make this publication unusable.



Haack, Robert A. 2001. Exotic scolytids of the Great Lakes region. Newsletter of the Michigan Entomological Society. Vol. 46, no. 3 (Aug. 2001).:p. 6-7.


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.