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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 4 of 4 (0.062 seconds)Spelling suggestions: "subject:"birch leafmining blowfly"" "subject:"birch leadmining blowfly""
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Population Dynamics of the birch leaf miner, Fenusa Pusilla (Lepeletier), on the blue birch, Betula Caerulea Grandis Blanchard, in Quebec.Cheng, Hsien-Hua. January 1967 (has links)
No description available.
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Population Dynamics of the birch leaf miner, Fenusa Pusilla (Lepeletier), on the blue birch, Betula Caerulea Grandis Blanchard, in Quebec.Cheng, Hsien-Hua. January 1967 (has links)
No description available.
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Biology and dynamics of the birch leaf miner, Fenusa Pusilla (Lepeletier) Hymenoptera: Tenthredinidae), on blue birch, Betula Caerulea Grandis Blanchard, in Quebec.Cheng, Hsien-Hua. January 1965 (has links)
The birch leaf-mining sawfly, Fenusa pusilla (Lep.), has been a major pest of birch trees in Canada since its introduction into North America in 1923 (Britton, 1924a, 1924b). From that date onwards, serious infestations of leaves of most species of birch have been reported, particularly from the maritime provinces. The species was first noted in the province of Quebec in 1929 by Dr. Lionel Daviault of Quebec City (Daviault, 1937) who observed it developing on seven birch species at Berthier. [...]
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| 4 |
Biology and dynamics of the birch leaf miner, Fenusa Pusilla (Lepeletier) Hymenoptera: Tenthredinidae), on blue birch, Betula Caerulea Grandis Blanchard, in Quebec.Cheng, Hsien-Hua. January 1965 (has links)
No description available.
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