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Screening of sitka spruce (Picea sitchensis) seedlings for resistance to the white pine weevil (Pissodes strobi) in a caging experiment



Screening of sitka spruce (Picea sitchensis) seedlings for resistance to the white pine weevil (Pissodes strobi) in a caging experiment



Belgian Journal of Entomology 2(2): 273-286



Four weevil pressure treatments (4, 8, 16 and 24 weevils per cage, equivalent to 1/2, 1, 2 or 3 weevils per seedling) were tested in a caging experiment on 2-year-old potted Sitka spruce seedlings (emblings: seedlings derived via somatic embryogenesis) or seedlings from weevil-susceptible (control) and -resistant sources. An increase in weevil pressure resulted in an increase in the numbers of both feeding punctures and adult weevils present on the seedlings, at least on susceptible ones.

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Accession: 003554659

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