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1 June 2004 Effect of Buprofezin on Survival of Immature Stages of Harmonia axyridis, Stethorus punctum picipes (Coleoptera: Coccinellidae), Orius tristicolor (Hemiptera: Anthocoridae), and Geocoris spp. (Hemiptera: Geocoridae)
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Abstract

The effect of buprofezin, a chitin synthesis inhibitor, on development and survival of immature stages of Harmonia axyridis (Pallas), Stethorus punctum picipes Casey, Orius tristicolor (White), Geocoris pallens Stål, and Geocoris punctipes (Say), was examined in a series of laboratory bioassays. Very few H. axyridis larvae (3.1%) treated with buprofezin reached adulthood, although 65% of treated pupae emerged successfully. Buprofezin caused no mortality to eggs of S. punctum picipes but 71.1% of treated early instar larvae failed to complete development. Eighty percent of treated late instars and 92.3% of pupae produced viable adults. Early instar nymphs of O. tristicolor were unaffected by buprofezin, whereas 47.7 and 85% of G. punctipes and G. pallens nymphs, respectively, failed to complete development. Treated eggs of G. pallens hatched successfully. The use of buprofezin in integrated pest management in Washington state wine grapes is discussed.

David G. James "Effect of Buprofezin on Survival of Immature Stages of Harmonia axyridis, Stethorus punctum picipes (Coleoptera: Coccinellidae), Orius tristicolor (Hemiptera: Anthocoridae), and Geocoris spp. (Hemiptera: Geocoridae)," Journal of Economic Entomology 97(3), 900-904, (1 June 2004). https://doi.org/10.1603/0022-0493(2004)097[0900:EOBOSO]2.0.CO;2
Received: 5 March 2003; Accepted: 15 December 2003; Published: 1 June 2004
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