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EFFECTS OF TAXUS CANADENSIS ON TWO INSECTS (HOMOPTERA: APHIDIDAE; COLEOPTERA: TENEBRIONIDAE)

Published online by Cambridge University Press:  31 May 2012

F. Perusse
Affiliation:
Département de Biologie, Université Laval, Québec, Québec
A. Duval
Affiliation:
Département de Biologie, Université Laval, Québec, Québec
S. S. Chawla
Affiliation:
Département de Biologie, Université Laval, Québec, Québec
J.-M. Perron
Affiliation:
Département de Biologie, Université Laval, Québec, Québec

Extract

Plants of the genus Taxus have pharmacologically active materials that elicit hypotensive effects and act on the cardiovascular musculature of dogs (Bourbeau 1954; Duval, unpub. data, 1974). Extracts from Taxus canadensis (Marsh) are more potent than those from T. baccata L. (Vohora 1972). In an investigation of Canadian plants for insecticidal and pharmacological activities, we observed that no insects fed on plants of the genus Taxus. Therefore we tested the toxicity of aqueous extracts of T. canadensis on two species of insects, Macrosiphum euphorbiae (Thomas) (Homoptera: Aphididae) and Tribolium confusum Duval (Coleoptera: Tenebrionidae).

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1977

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