Data/hora: 20/06/2024 19:22:20

Biblioteca(s): 	Embrapa Clima Temperado.	
Data corrente: 	25/10/2021	
Data da última atualização: 	25/10/2021	
Autoria: 	MORAIS, M. C.; RAKES, M.; PADILHA, A. C.; GRÜTZMACHER, A. D.; NAVA, D. E.; BERNARDI, O.; BERNARDI, D.	
Afiliação: 	MAÍRA C. MORAIS, UFPEL; MATHEUS RAKES, UFPEL; ALINE C. PADILHA, UFPEL; ANDERSON D. GRÜTZMACHER, UFPEL; DORI EDSON NAVA, CPACT; ODERLEI BERNARDI, UFPEL; DANIEL BERNARDI, UFPEL.	
Título: 	Susceptibility of Brazilian Populations of Anastrepha fraterculus, Ceratitis capitata (Diptera: Tephritidae), and Drosophila suzukii (Diptera: Drosophilidae) to Selected Insecticides.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Journal of Economic Entomology, v. 114, n. 3, p. 1291-1297, 2021.	
DOI: 	10.1093/jee/toab050	
Idioma: 	Inglês	
Conteúdo: 	Anastrepha fraterculus (Wiedemann), Ceratitis capitata (Wiedemann), and Drosophila suzukii (Matsumura) are the main fruit pests in Brazil. Here, we evaluated the susceptibility of Brazilian populations of A. fraterculus, C. capitata, and D. suzukii to selected insecticides. In ingestion bioassays, adults from a laboratory susceptible population of each species were exposed to five different modes of action of insecticide. Then, field populations of each species were exposed to the diagnostic concentrations to evaluate possible changes in susceptibility. Our findings indicate that lambda-cyhalothrin, malathion, and spinosad had similar levels of toxicity against a susceptible laboratory population of A. fraterculus, with LC50 values of 6.34, 6.54, and 8.76 ?g a.i./ ml, respectively. Ceratitis capitata had similar susceptibilities to spinosad (1.30 ?g a.i./ml), spinetoram (2.76 ?g a.i./ml), and malathion (7.10 ?g a.i./ml), but a lower susceptibility to lambda-cyhalothrin (76.55 ?g a.i./ml). For D. suzukii, the LC50 values of deltamethrin (0.67 ?g a.i./ml), malathion (3.30 ?g a.i./mL), spinosad (4.16 ?g a.i./ ml), and spinetoram (4.75 ?g a.i./ml) were lower than for abamectin (15.02 ?g a.i./ml), acetamiprid (39.38 a.i./ ml), and thiamethoxam (70.15 ?g a.i./ml). The diagnostic concentrations, based on LC99 values of the insecticides, caused more than 99% mortality for most field populations of each species. For lambda-cyhalothrin the populations RS-1 (A. fraterculus) and SC (C. capitata) showed approximately 10% of live insects. These differences represent the natural variation in population susceptibility and not due to insecticide selection pressure. The diagnostic concentrations defined here should be used in future resistance monitoring programs in Brazil.	
Thesagro: 	Anastrepha Fraterculus; Ceratitis Capitata; Fruticultura; Inseticida; Praga; Praga de Planta.	
Thesaurus Nal: 	Drosophila suzukii.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Clima Temperado (CPACT)	
Exemplares: 	CPACT - (22009-1) - UPC - AP - DD -  -  -  - DIS