Publication Details

Distribution of the cone insect, Dioryctria disclusa, in red pine.

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Year Published

1976

Publication

Research Paper NC-136. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

Abstract

Within the crowns of red pine, Pinus resinosa Ait., trees, larvae of the cone insect, Dioryctria disclusa Heinrich, tended to follow the distributions of their foods. Between-tree distributions of larvae, however, were relatable to food distributions in only two of five years. Cone damage/tree by D. disclusa increased linearly with cone abundance per tree when insect populations were large relative to cones. Percentage cone damage/tree was not significantly correlated with cone abundance.

Citation

Mattson, William J. 1976. Distribution of the cone insect, Dioryctria disclusa, in red pine. Research Paper NC-136. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

Last updated on: August 11, 2006