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Título: Response of coccinellid community to the dimethoate application in olive groves in northeastern Portugal
Autor: Santos, Sónia A.P.
Pereira, J.A.
Raimundo, A.
Torres, L.
Nogueira, A.J.A.
Palavras-chave: Coccinellidae
Integrated pest management
Olea europaea
Organic farming
Principal response curves
Species abundance
Issue Date: 2010
Editora: INIA
Citação: Santos, S. A.; Pereira, J. A.; Raimundo, A.; Torres, L.M.; Nogueira, A.J.A. (2010) - Response of coccinellid community to the dimethoate application in olive groves in northeastern Portugal. Spanish Journal of Agricultural Research. ISSN 1695-971X. 8:1, p. 126-134
Resumo: In this work we assessed the effects of the application of dimethoate on the coccinellid community. The field work was carried out on a weekly basis, in two different olive groves, from April to November of 2002 and 2003 and captured coccinellids were identified to species level. Principal response curves (PRC) method was used to analyse the effect of the dimethoate application on the abundance of coccinellid species. A total of 23 species were identified from the two olive groves. Nine species occurred in both olive groves and in the two years of the study. Scymnus interruptus was the dominant species in the control grove with 46.4% of the total Coccinellidae recovered while in the grove treated with dimethoate, Rhyzobius chrysomeloides represented 35.7% of the total number captured. PCR showed that the main effect of the treatment was a significant reduction of the abundance of the most common species of the coccinellid community (S. interruptus and Chilocorus bipustulatus) in the treated grove. This can also have implications on the preservation of ecological functions associated with coccinellids, namely their role as control agents of olive pests.
Arbitragem científica: yes
ISSN: 1695-971X
Versão do Editor:
Appears in Collections:PTV - Artigos em Revistas Indexados ao ISI/Scopus

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