BIOLOGY OF THE GALLERDIPLOLEPIS ROSAEFOLII(HYMENOPTERA: CYNIPIDAE), ITS ASSOCIATED COMPONENT COMMUNITY, AND HOST SHIFT TO THE SHRUB ROSE THÉRÈSE BUGNET
- 1 June 1998
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 130 (3) , 357-366
- https://doi.org/10.4039/ent130357-3
Abstract
Diplolepis rosaefolii(Cockerell) induces a lenticular gall on the leaves of various roses across Canada. In Ontario and Quebec,D.rosaefoliiis found only onRosa acicularisLindl., and its galls are inhabited by eight species of parasitoids, the most common beingChrysocharis pentheus(Walker),Orthopelma luteolator(Gravenhorst), andEupelmus dryorhizoxeniAshmead. Parasitoids and the inquilinePericlistussp. make up 48–62% of gall inhabitants. Here we report a population ofD.rosaefoliion the hybrid rugosa shrub rose Thérèse Bugnet in a field of experimental roses in Quebec. Only two species of parasitoids and one specimen ofPericlistussp. were associated with these galls.Keywords
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