The distribution of the wheat midge, Sitodiplosis Mosellana (Gehin), in British Columbia

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The distribution of the wheat midge, Sitodiplosis Mosellana (Gehin), in British Columbia

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The growing problem of pollination in British Columbia from the point of view of extension entomology

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Preliminary insecticide tests against the Douglas-fir needle midges, Contarinia spp., Larkin, B.C., 1962

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Chemical control of the aspen leaf miner, Phyllocnistis populiella Cham. (Lepidoptera: Gracillariidae)

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The satin moth, Stilpnotia Salicis (L.), in the interior of British Columbia

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Preliminary insecticide tests against the Douglas-fir needle midges, Contarinia spp., Larkin, B.C., 1962

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Chemical control of the aspen leaf miner, Phyllocnistis populiella Cham. (Lepidoptera: Gracillariidae)

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