Flutuação populacional de lepidópteros desfolhadores de eucalipto em Bom Despacho, Minas Gerais

• Ano de defesa: 2006
• Autor(a) principal: Almado, Roosevelt de Paula
• Orientador(a): Zanuncio, José Cola
• Banca de defesa: Zanuncio, Teresinha Vinha , Message, Dejair , Picanço, Marcelo Coutinho , Pereira, José Milton Milagres
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Entomologia
• Departamento: Ciência entomológica; Tecnologia entomológica
• País: BR
• Palavras-chave em Português: Lepidoptera; Monitoramento; Pragas de eucalipto
• Palavras-chave em Inglês: Lepidoptera; Monitoring; Eucalypt pests
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE
• Link de acesso: http://locus.ufv.br/handle/123456789/3978

The objective of this work was to identify the species of Lepidoptera primary pests for the eucalyptus and to evaluate the influence of the temperature and rainfall on their population fluctuation in the area of Bom Despacho, Minas Gerais State, Brazil. Five light traps were used during one night, every fifteen days, from January 1994 to December 2001. The species collected were Thyrinteina arnobia and Oxydia vesulia (Geometridae), Sarsina violascens (Lymantriidae), Psorocampa denticulata (Notodontidae) and Eupseudosoma aberrans (Arctiidae). A total of 12,040.5 individuals were collected per trap, being T. arnobia the most abundant species, with 96.05% of the individuals during the eight years of collection. The largest number of individuals was collected in April and May, indicating that the outbreaks of these species are concentrate in these months. T. arnobia had no significant correlations with the temperature and the rainfall but O. vesulia had negative correlation with the rainfall. S. violascens and E. aberrans presented similar population fluctuation with negative correlation with the temperature and the rainfall. P. denticulata presented positive correlation with these factors. The Lepidoptera primary pests of eucalyptus collected in the area of Bom Despacho presented higher number of individuals in the coldest and dry months of the year, especially in April and May, except P. denticulata. This last species had higher number of individuals collected in October and November and in February and March at the beginning and the final of the raining season.