title: Acute toxicity of fipronil to the stingless bee Scaptotrigona postica Latreille.
abstract: Fipronil is an insecticide widely used to control a great number of pests, thus the aim of this study was to determine the lethal dose and lethal concentration (LD(50) and LC(50)) of this insecticide to the stingless bees Scaptotrigona postica Latreille, 1807. The LD(50) and LC(50) values obtained after 24 h of exposition were of 0.54 ng a.i./bee and 0.24 ng a.i./μL diet, respectively. These values were considered highly toxic to stingless bees.
authors.affiliation: Departamento de Biologia, Centro de Estudos de Insetos Sociais, Univ. Estadual Paulista, Campus de Rio Claro, Avenida 24-A, n.1515-Bela Vista, Rio Claro, SP, 13506-900, Brazil. re_jacob@yahoo.com.br
authors.forename: Cynthia Renata Oliveira
authors.initials: CR
authors.lastname: Jacob
authors.forename: Hellen Maria
authors.initials: HM
authors.lastname: Soares
authors.forename: Stephan Malfitano
authors.initials: SM
authors.lastname: Carvalho
authors.forename: Roberta Cornélio Ferreira
authors.initials: RC
authors.lastname: Nocelli
authors.forename: Osmar
authors.initials: O
authors.lastname: Malaspina
mesh_terms: D000818:Animals; D001516:Bees / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D007306:Insecticides / Q000633:toxicity*; D007928:Lethal Dose 50; D011720:Pyrazoles / Q000633:toxicity*
chemical_list: D007306:Insecticides; D011720:Pyrazoles; C082360:fipronil