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Host-parasite relationships.

Bark beetle nematodes in British Columbia with emphasis on the biology and host-parasite relationship of Contortylenchus reversus. --

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The grape leafhopper Erythroneura Ziczac (Homoptera: Cicadellidae) and its Mymarid (Hymenoptera) egg-parasite in the Okanagan Valley, British Columbia. --

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The grape leafhopper Erythroneura Ziczac (Homoptera: Cicadellidae) and its Mymarid (Hymenoptera) egg-parasite in the Okanagan Valley, British Columbia. --
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The grape leafhopper Erythroneura Ziczac (Homoptera: Cicadellidae) and its Mymarid (Hymenoptera) egg-parasite in the Okanagan Valley, British Columbia. --
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Paralysis by the Hymenopteran parasite, Aphelinus Asychis, as a mortality factor of two aphid species

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Paralysis by the Hymenopteran parasite, Aphelinus Asychis, as a mortality factor of two aphid species
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Paralysis by the Hymenopteran parasite, Aphelinus Asychis, as a mortality factor of two aphid species
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A study of weight variation in Aphidius Smithi (Hymenoptera: Aphidiidae) a parasite of the pea aphid, Acyrthosiphon Pisum (Homoptera: Aphididae)

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A study of weight variation in Aphidius Smithi (Hymenoptera: Aphidiidae) a parasite of the pea aphid, Acyrthosiphon Pisum (Homoptera: Aphididae)
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A study of weight variation in Aphidius Smithi (Hymenoptera: Aphidiidae) a parasite of the pea aphid, Acyrthosiphon Pisum (Homoptera: Aphididae)
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