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Abstract
Leucopis spp. (Diptera: Chamaemyiidae) from the Pacific Northwest previously were identified as potential biological control agents for the hemlock woolly adelgid,
Adelges tsugae Annand (Hemiptera: Adelgidae), in the eastern United States. We collected
Leucopis spp. larvae from
A. tsugae infested western hemlocks in Oregon and Washington and reared them on an unidentified
Pineus spp.,
Pineus strobi (Hartig),
Adelges cooleyi (Gillette),
Adelges piceae (Ratzeburg), and
A. tsugae in three no-choice tests.
Leucopis spp. survival on
A. tsugae was significantly higher than on
A. piceae during the 2010 progrediens generation test and significantly higher than on
P. strobi and
A. cooleyi
Citation
Grubin, Sarah M.; Ross, Darrell W.; Wallin, Kimberly F. 2011. Prey suitability and phenology of Leucopis spp (Diptera: Chamaemyiidae) associated with hemlock woolly adelgid (Hemiptera: Adelgidae) in the Pacific Northwest. Environmental Entomology. 40(6): 1410-1416.