Khallaayoune Khalid, Qualls Whitney A, Revay Edita E, Allan Sandra A, Arheart Kristopher L, Kravchenko Vasiliy D, Xue Rui-De, Schlein Yosef, Beier John C, Müller Günter C
Department of Parasitology, Institut Agronomique et Vétérinaire Hassan II, B.P. 6202, Rabat-Instituts, Morocco 6202.
Environ Entomol. 2013 Oct;42(5):1040-5. doi: 10.1603/EN13119.
We evaluated the efficacy of attractive toxic sugar baits (ATSB) in the laboratory and field with the low-risk active ingredient dinotefuran against mosquito populations. Preliminary laboratory assays indicated that dinotefuran in solution with the sugar baits was ingested and resulted in high mortality of female Culex quinquefasciatus Say and Aedes aegypti Linnaeus. Field studies demonstrated >70% reduction of mosquito populations at 3 wk post-ATSB application. Nontarget feeding of seven insect orders-Hymenoptera, Lepidoptera, Coleoptera, Diptera, Hemiptera, Orthoptera, and Neuroptera-was evaluated in the field after application of attractive sugar baits (ASB) on vegetation by dissecting the guts and searching for food dye with a dissecting microscope. Nontargets were found stained with ASB 0.9% of the time when the application was applied on green nonflowering vegetation. Only two families were significantly impacted by the ASB application: Culicidae (mosquitoes) and Chironomidae (nonbiting midges) of the order Diptera. Pollinators of the other insect orders were not significantly impacted. No mortality was observed in the laboratory studies with predatory nontargets, wolf spiders or ground beetles, after feeding for 3 d on mosquitoes engorged on ATSB applied to vegetation. Overall, this novel control strategy had little impact on nontarget organisms, including pollinators and beneficial insects, and was effective at controlling mosquito populations, further supporting the development of ATSB for commercial use.
我们在实验室和野外评估了含有低风险活性成分呋虫胺的诱蚊毒糖饵(ATSB)对蚊虫种群的防治效果。初步实验室分析表明,与糖饵混合溶液中的呋虫胺被蚊虫摄取后,导致致倦库蚊和埃及伊蚊雌蚊的死亡率很高。野外研究表明,在施用ATSB后3周,蚊虫种群数量减少了70%以上。通过解剖肠道并用解剖显微镜寻找食用色素,对施用诱蚊糖饵(ASB)后野外七个昆虫目的非靶标取食情况进行了评估,这七个昆虫目分别为膜翅目、鳞翅目、鞘翅目、双翅目、半翅目、直翅目和脉翅目。当在绿色非开花植被上施用ASB时,发现非靶标昆虫被ASB染色的时间占0.9%。ASB的施用仅对两个科有显著影响:双翅目的蚊科(蚊子)和摇蚊科(非吸血蠓)。其他昆虫目的传粉者未受到显著影响。在实验室研究中,以取食了施用于植被上的ATSB的蚊子为食3天后,未观察到捕食性非靶标动物狼蛛或步甲的死亡情况。总体而言,这种新型防治策略对包括传粉者和益虫在内的非靶标生物影响很小,且能有效控制蚊虫种群数量,进一步支持了ATSB用于商业用途的开发。