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TRENDS IN POPULATIONS OF THREE SPECIES OF SAWFLIES INFESTING TAMARACK IN SOUTHEASTERN MANITOBA (HYMENOPTERA: TENTHREDEVIDAE)

Published online by Cambridge University Press:  31 May 2012

W.G.H. Ives
W.G.H. Ives
Affiliation:
Northern Forest Research Centre, Canadian Forestry Service, Edmonton, Alberta
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Abstract

Seasonal distributions of adult emergence and larval drop for Anoplonyx luteipes (Cresson), A. canadensis Harrington, and Pristiphora erichsonii (Hartig) are compared. Larval populations of A. luteipes have a significant positive correlation with those of P. erichsonii, while A. canadensis adult populations show a significant negative correlation with P. erichsonii larval populations.

Résumé

L’auteur compare les distributions saisonnières de l’émergence des adultes et de la tombée des larves appartenant à Anoplonyx luteipes (Cresson), A. canadensis Harrington et Pristiphora erichsonii (Hartig). Les populations larvaires de A. luteipes sont en corrélation positive significative avec celles de P. erichsonii, tandis que les populations adultes d’A. canadensis sont en corrélation négative significative avec les populations larvaires de P. erichsonii.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 4 , April 1977 , pp. 635 - 638
Copyright
Copyright © Entomological Society of Canada 1977

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References

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