Publication Details

The Impact of Insects on Second-Year Cone Crops in Red Pine Seed-Production Areas

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Year Published

1968

Publication

Research Note NC-53. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

Abstract

Second-year cone crops in red pine seed-production areas have been severely damaged by five species of insects. Control of the two most destructive pests could increase present seed yields in most areas by at least 50 percent. Some seed-production areas may not produce harvestable seed crops until cone-insect populations are suppressed.

Keywords

Insects red pine

Citation

Mattson, William J. 1968. The Impact of Insects on Second-Year Cone Crops in Red Pine Seed-Production Areas. Research Note NC-53. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

Last updated on: August 11, 2006