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Pine Root Collar Weevil Hazard Zones for Red Pine in Lower Michigan

Informally Refereed
Download (PDF 480 KB): https://research.fs.usda.gov/download/treesearch/11282.pdf

Abstract

The Lower Peninsula of Michigan is divided into low, medium, and high hazard zones by degree of potential weevil damage. New plantings should be established no closer than I mile from a weevil infestation in the high hazard zone or no closer than ? mile in the medium hazard zone to lessen the probability of those plantings becoming heavily infested.

Citation

Wilson, Louis F.; Kennedy, Patrick C. 1970. Pine Root Collar Weevil Hazard Zones for Red Pine in Lower Michigan. Research Note NC-104. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station