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Distribution of the cone insect, Dioryctria disclusa, in red pine.Author(s): William J. Mattson
Source: Research Paper NC-136. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Publication Series: Research Paper (RP)
Station: North Central Research Station
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DescriptionWithin 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.
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CitationMattson, 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
Keywordsnegative binomial, sampling, cone damage, male strobili, model
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