Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/6806
Título: Leptoglossus occidentalis: bioecologia e previsão de impacte económico em Portugal
Autor: Pimpão, Miguel Lourenço Cristovão
Orientador: Simões, Manuela Rodrigues Branco
Sousa, Edmundo Manuel Rodrigues
Spínola, Maria Teresa Moreira Valdiviesso
Palavras-chave: stone pine
pinion production
Leptoglossus occidentalis
pests
diseases
reproductive phenology
Pinus pinea
Data de Defesa: 2014
Editora: ISA
Citação: Pimpãp, M.L.C. - Leptoglossus occidentalis: bioecologia e previsão de impacte económico em Portugal. Lisboa: ISA, 2014, 105 p.
Resumo: Stone Pine Pinus pinea is one of the most important forest species in Portuguese forestry. The species generates relevant economic benefits, particularly through the production of cones (pinion). An increasing incidence of pests and diseases observed affecting the cones in the latest years, alerted for the need of research on these organisms, as well its interactions with the stone pine reproductive phenology. Through the analysis of pine cones collected in the five main districts at national level, high incidence of three biotic agents were found: Diplodia pinea (fungus), Pissodes validirostris (Coleoptera) and Dioryctria mendacella (Lepidoptera). In 2010 Leptoglossus occidentalis was detected for the first time in Portugal, a sucking insect that feeds on seeds of various species of conifers and can seriously affect the production of Stone Pine pinions. In the field we have conducted observations and several individuals were collect. The bugs were then successfully reared in laboratory conditions. Phenological observations on the reproductive biology of the Stone Pine were made in Coruche Clonal Park and Santa Susana (Sintra) and the reproductive structures were described along its developmental phases. The reproductive structures of P. pinea were further analysed using histological techniques
Descrição: Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/6806
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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