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Acta Amazonica

versão impressa ISSN 0044-5967versão On-line ISSN 1809-4392

Resumo

COSTA, José Paulo Chaves da; ALVES, Sérgio de Mello  e  BELO, Muracy. Rotenone contents in Timbó Clones (Derris spp.: Fabaceae) from different Amazonian regions and their effects on the emergence of Musca domestica L. Imagoes. Acta Amaz. [online]. 1999, vol.29, n.4, pp.563-573. ISSN 0044-5967.  http://dx.doi.org/10.1590/1809-43921999294573.

The rotenone contents analysis in clones of three timbó species permited the classification of these plants based on their efficiency to control Musca domestica larvae. The results showed significant correlations between the rotenone contents in the Derris urucu and D. nicou clones with the capacity to control the larvae. The plants with high rotenone contents were more effective. The rotenone contents, the effect of Derris species clones on the flics and the localization of the plants origin, showed that among the plants could have happened a populational isolation in the Amazonia during the pleistocene epoch. In Derris sp., that presented lower rotenone contents and was ineffective to control of the larvae, these differences were not observed.

Palavras-chave : Timbó; rotenona; Musca domestica; Amazônia; refúgios florestais.

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