USDA Forest Service

NCRS - The Changing Midwest Assessment

Pine Shoot Beetle, 1992 - 2001

Pine Shoot Beetle
The pine shoot beetle is native to Europe, Asia, and northern Africa, as its name implies, it is a pest of various species of pine. It was first discovered in North America near Cleveland, Ohio in 1992, although subsequent analyses suggest that it has likely been present since the late 1980's. Currently, it is present in four of the seven states in the North Central Region, including Illinois, Indiana, Michigan, and Wisconsin. Over the past decade, the beetle has spread at a detected rate of 30 counties per year, and it will likely continue to spread given the widespread availability of suitable host material. The pine shoot beetle breeds in recently cut pine trees, logs, branches, and stumps, as well as in live pine trees that have been severely stressed by weather, fire or previous infestations. Adults emerge from host breeding material to feed in shoots in the crown, or may seek out new host material. Juveniles emerge and spend the summer and fall feeding. They over winter in the outer bark at the base of live pine trees. To date, the beetle has caused relatively little damage in well-managed nurseries and forests; however, severe damage and mortality have been reported in unmanaged sites.

Robert Haack and Therese Poland, scientists at the North Central Research Station, are providing regional and national leadership in developing management strategies. To learn more about their on-going work related to the pine shoot beetle and other insects, please click on the following link: Research Programs/Insects & disease [ To view maps and animations depicting changes in the presence and establishment of the pine shoot beetle, choose either Flash format or continuous animation.

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