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Fumigation effects of SO2 on pine needle scale infestations on eastern white pine

Proceedings of the American Phytopathological Society 1977; 3: 305
Fumigation effects of SO2 on pine needle scale infestations on eastern white pine
Eastern white pine (Pinus strobus) seedlings infested with pine needle scale (Chionaspis pinifoliae) were fumigated with 0.5 p.p.m. SO2 for 6 h/day and 5 days/wk for 10.5 wk, over the second and part of the third generations of the scale. Scale density of the control second generation increased more (3.5X) than the SO2- treated population (1.35X) but length of mature females, and fecundity of second generation females, were similar.

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Accession: 000664812

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