Influência de Cecropia pachystachya na incidência de ácaros (Arachnida, Acari) e de Leptopharsa heveae (Insecta, Hemiptera) em cultivo de seringueira
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Data
2010
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Editor
Vera Lúcia Gomes Klein
Resumo
Cecropia pachystachya is a plant native to the states of Mato Grosso and São Paulo, usually
found in rubber tree plantations. The goals of this study were to verify: a) whether the presence of C.
pachystachya in rubber tree plantations influences the occurrence of mites in rubber trees; b) whether
it can be used as a reservoir of predaceous mites; c) whether it serves as an alternative host for Leptopharsa
heveae during the natural senescence of rubber trees. This study was conducted in two rubber
tree plantations in São José do Rio Preto, in the state of São Paulo, Brazil. One of them had numerous
naturally growing individuals of C. pachystachya, while the other was free of spontaneous plants. We
registered high richness of predaceous mites on C. pachystachya, but only 37.5% of them were found
on rubber trees, which reveals low displacement rate of mites between the plants. Among the species
that were common to both plants, only the predaceous Zetzellia agistzellia and the phytophagous mites
Allonychus brasiliensis and Eutetranychus banksi were influenced by the presence of C. pachystachya.
The incidence of L. heveae did not differ between the plantations under study and, moreover,
C. pachystachya was not used as an alternative host by this insect, since no individuals were registered
on its leaves during the natural senescence of rubber trees.
Descrição
v. 7, n. 2, p. 49-60, 2010.
Palavras-chave
Diversificação de cultivos, Embaúba, Hevea brasiliensis, Manejo de pragas, Planta espontânea
Citação
DAUD, Rodrigo Damasco; SILVA, Eduardo Rodrigo Oliveira da; FERES, Reinaldo José Fazzio. Influência de Cecropia pachystachya na incidência de ácaros (Arachnida, Acari) e de Leptopharsa heveae (Insecta, Hemiptera) em cultivo de seringueira. Revista de Biologia Neotropical, v. 7, n. 2, p. 49-60, 2010. Disponível em: <http://www.revistas.ufg.br/index.php/RBN/article/view/15462/9465>.