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Factors determining the distribution of the green spruce aphid, Elatobium abietinum, on young and mature needles of spruce

D. Jackson ; A. Dixon | 1996

1. The green spruce aphid Elatobium abietinum, was less active and more likely to feed when on mature rather than young needles of Sitka spruce. 2. Compared with survival on mature needles, survival of aphids on young needles was significantly r[...]

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