Browsing Electronic Theses and Dissertations by Subject "Defoliation"
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Determining genetic resistance to jack pine budworm defoliation in jack pine from different geographic seed sources across Ontario
(2020)Jack pine budworm is an outbreak insect that defoliates jack pine forests across Canada. While it is a native species, the outbreaks can have severe economic impacts, such as loss of timber volume and increased risk of ... -
Mitigating the effects of the white satin moth (Leucoma salicis) in Thunder Bay’s urban forest
(2021)The white satin moth, Leucoma salicis (L.), has been detected as a pest of urban trees in Thunder Bay, Ontario. Surveys were conducted in urban environments following the discovery of this introduced species to determine ... -
The response of avian predator populations to forest tent caterpillar (Malacosoma disstria; Lepidoptera: Lasiocampidae) outbreaks in Ontario, Canada
(2020)Outbreaks of insect defoliators have broad ecological effects on forested ecosystems because they can cause extensive mortality in host tree populations. They also represent peaks in the density of food for specialist ...