Canadian Forest Service Publications

Influence of drainage and edge vegetation on levels of attack and biological performance of the white pine weevil. 1996. Lavallée, R.; Archambault, L.; Morissette, J.L. Forest Ecology and Management 82: 133-144.

Year: 1996

Issued by: Laurentian Forestry Centre

Catalog ID: 16704

Language: English

Availability: PDF (request by e-mail)

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The influence of selected ecological factors was studied in relation to the levels of attack by the white pine weevil and the biological performance of this insect in Norway spruce plantations. Results showed that in plantations growing on medium-textured soils, those situated on imperfectly drained soils supported higher levels of infestation than those on well-drained sites. The presence of shelterbels creating an edge effect near a plantation was associated with higher levels of infestation. The biological performance of the weevil was affected by drainage but was not affected by the presence of shelterbelts. On imperfectly-drained soils, adult mean weight was smaller than on well-drained soils. The number of insects per leader was not affected by drainage regime. Adult mean weight and the mean number of insects per leader were not affected by the presence of shelterbelt vegetation. Host and site selection are discussed in relation to the biological performance of the weevil.