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Comparative use of Mindarus abietinus (Homoptera: Aphididae) by two coccinellids (Coleoptera: Coccinellidae), the native Anatis mali and the exotic Harmonia axyridis, in a Christmas tree plantation. 2007. Berthiaume, R.; Hébert, C.; Cloutier, C. Environ. Entomol. 36: 319-328.

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