F\u0131eld evaluation of the IGRs, Diflubenzuron, s-methprene, and bactierally-deprived insecticide, spinosad, against Culex pipiens molestus and Aedes albopictus mosquitoes in North-eastern Italy<\/p>\n
Dalla Pozza G.1, Avella L. 2,Ceretti G.1 , Baldazzi L.3, Tagliapietra P.1, Ali A.4.<\/strong><\/p>\n 1 Department of Public Health, Azienda ULSS 12 Veneziana, P.le S.L. Giustiniani, 11\/D. 30174 Venice, Italy. Initially effectiveness and residual activity of three insect growth regulator (IGR) commercial products, Device\u00ae SC 15 (15% AI diflubenzuron, flowable), Altosid\u00ae SR-10 (5% AI s-methoprene, F\u0131eld evaluation of the insecticide against Culex pipiens molestus and Aedes albopictus mosquitoes in North-eastern Italy<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[44,54,53,46,57,56,55],"class_list":["post-137","post","type-post","status-publish","format-standard","hentry","category-11_th_march","tag-culex","tag-diflubenzuron","tag-igrs","tag-insecticide","tag-italy","tag-pipiens","tag-s-methprene"],"_links":{"self":[{"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/posts\/137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/comments?post=137"}],"version-history":[{"count":6,"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/posts\/137\/revisions"}],"predecessor-version":[{"id":171,"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/posts\/137\/revisions\/171"}],"wp:attachment":[{"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/media?parent=137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/categories?post=137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.openstream.tv\/zanzare\/wp-json\/wp\/v2\/tags?post=137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n2 R&D Department Chemtura Italy Srl, Latina, Italy
\n3 Via De Carolis, 27. 47900 Rimini, Italy.
\n4 Mid-Florida Research and Education Center and Department of Entomology and Nematology, University of Florida, 2725
\nBinion Road, Apopka, Florida 32703, USA<\/p>\n
\nmicroencapsulated), and Proxilar\u00ae (4% AI pyriproxyfen, emulsifiable concentrate), and a bacterially-derived insecticide, Laser\u00ae (48% AI spinosad, emulsifiable concentrate), were evaluated
\nagainst mixed populations of Culex pipiens molestus and Aedes albopictus inhabiting manholes in north-eastern Italy. The test products were applied at recommended field-use rates (label) to the
\nmanholes in Venice-Mestre (Venezia Province) and Riccione (Rimini Province). The post-treatment efficacy of the IGRs and spinosad was judged by monitoring inhibition of adult mosquito emergence (IE) weekly up to 11 weeks post-treatment, compared to the corresponding untreated manholes serving as controls in each study area. Device\u00ae SC 15 at 0.75 ppm AI, induced >90% IE of Cx. p. molestus for 8 and 7 weeks post-treatment at Venice-Mestre and Riccione, respectively, while simultaneously yielding similar (>90% IE) control of Ae. albopictus for 9 weeks (Venice-Mestre) and 7 weeks (Riccione) post-treatment. Altosid\u00ae SR-10 at 0.75 ppm AI resulted in good control (>90% IE) of both mosquito species for 4-5 weeks post-treatment in the two study areas.
\nProxilar\u00ae applied at 0.2 ppm caused >90% IE of Cx. p. molestus for 5 weeks (Venice-Mestre) and 4 weeks (Riccione) post-treatment; this IGR gave >90% IE control of Ae. albopictus for 3 and 4 weeks post-treatment at Venice-Mestre and Riccione, respectively. Laser\u00ae at 1 ppm AI induced >90% IE of Cx. p. molestus for 8 weeks post-treatment at Venice-Mestre, and for 7 weeks at Riccione,
\nwhereas Ae. albopictus emergence was reduced >90% IE for 6 weeks and 7 weeks posttreatment at the former and latter study area, respectively. Two-way ANOVA and Tuckey test revealed
\nsignificantly (P < 0.001) longer post-treatment persistence of Device\u00ae SC 15 and Laser\u00ae over Altosid\u00ae SR-10 and Proxilar\u00ae at the treatment rates employed in this study, providing superior
\ncontrol of the two mosquito species in terms of magnitude and post-treatment time duration.<\/p>\n","protected":false},"excerpt":{"rendered":"