• Corpus ID: 52214667

Death and deterioration of Balsam Fir weakened by Spruce budworm defoliation in Ontario. Part 111. The deterioration of dead trees.

  title={Death and deterioration of Balsam Fir weakened by Spruce budworm defoliation in Ontario. Part 111. The deterioration of dead trees.},
  author={J. T. Basham and Robyn Belyea},
  journal={Forest Science},
CERTAIN FEATURES of the seasonal history and habits of the insect species which breed in severely weakened and dead balsam fir trees in the Lake Nipigon region of Ontario have been dealt with in a previous contribution (3). For many years it has been recognized that some of these insects attack weakened trees before death is obvious, and therefore possibly contribute to tree mortality. Various interpretations of the importance of these insects in the death of the tree have been reached by… 

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