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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Susceptibility of Grapholita molesta to insecticides in Brazil
Autores:  Silva,Oscar Arnaldo Batista Neto e
Botton,Marcos
Bernardi,Daniel
Arioli,Cristiano João
Omoto,Celso
Data:  2018-01-01
Ano:  2018
Palavras-chave:  Chemical control
Insect resistance management oriental fruit moth
Resumo:  ABSTRACT: The use of insecticides has been the main tool for Grapholita molesta (Busck) control in Brazil, which is considered one of the most important pests in apple and peach orchards. In order to implement an Insect Resistance Management (IRM) program, studies were conducted to characterize the baseline susceptibility of G. molesta to major insecticides for its control. Then, we conducted an insecticide susceptibility monitoring in thirteen field-collected populations of the pest. Neonates (0-24h old) were exposed to insecticides applied on surface of artificial diet. A high susceptibility was verified when neonates of the Laboratory population of G. molesta were exposed to insecticides with LC50 values (µg a.i./cm2) of 0.1 (spinetoram), 1.0 (metaflumizone), 1.2 (chlorantraniliprole), 4.8 (novaluron), 5.1 (tebufenozide), 11.3 (phosmet) and 222.5 (pyriproxyfen). Based on the LC99 (µg a.i./cm2), the diagnostic concentrations of 0.6 (spinetoram), 5.5 (metaflumizone), 5.6 (chlorantraniliprole), 19.6 (tebufenozide), 37.4 (phosmet), 37.8 (novaluron) and 2011 pyriproxyfen) caused high mortality (>95%) of neonates from field populations. These diagnostic concentrations will be used in resistance monitoring programs of G. molesta in Brazil.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100152
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/0103-8478cr20170253
Formato:  text/html
Fonte:  Ciência Rural v.48 n.1 2018
Direitos:  info:eu-repo/semantics/openAccess
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