Impact of kaolin particle film, spirodiclofen acaricide, harpin protein, and an organic biostimulant on pear psylla Cacopsylla pyri (Hemiptera: Psyllidae)

摘要

Pear psylla Cacopsylla pyri (L.) is among the most serious pests in pear orchards. Field studies were conducted in 2005 and 2006 on pear trees (Pyrus communis L.) to assess the effect of kaolin-based particle film, spirodiclofen acaricide, harpin protein, and an organic biostimulant on C. pyri infestations. Pear psylla nymph densities were effectively suppressed over the entire season by kaolin particle film and spirodiclofen treatments compared with the untreated control. Harpin protein protected pear trees almost as well as the spirodiclofen acaricide, while the organic biostimulant provided no protection. Kaolin particle film, spirodiclofen, and harpin protein-sprayed pear trees significantly outperformed their unsprayed counterparts in terms of fruit load. Based on the results of this study, it seems that kaolin particle film, spirodiclofen, and harpin protein could be used as alternatives to broad-spectrum insecticides for suppressing pear psylla infestations.View full textDownload full textKeywords Cacopsylla pyri , kaolin particle film, spirodiclofen, harpin, organic biostimulantRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09670870903156632