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A photographic technique for estimating egg density of the white pine weevil, Pissodes strobi (Peck)Author(s): Roger T. Zerillo
Source: Res. Pap. NE-318. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
Publication Series: Research Paper (RP)
Station: Northeastern Research Station
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DescriptionCompares a photographic technique with visual and dissection techniques for estimating egg density of the white pine weevil, Pissodes strobi (Peck). The relatively high correlations (.67 and .79) between counts from photographs and those obtained by dissection indicate that the non-destructive photographic technique could be a useful tool for determining egg density.
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CitationZerillo, Roger T. 1975. A photographic technique for estimating egg density of the white pine weevil, Pissodes strobi (Peck). Res. Pap. NE-318. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
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