Screening of Asteraceae (Compositae) Plant Extracts for Larvicidal Activity against Aedes fluviatilis (Diptera: Culicidae)

Memórias do Instituto Oswaldo Cruz

Maria E Macêdo¹  Rotraut Agb Consoli¹  Telma Sm Grandi¹  Antônio Mg Dos Anjos¹  Alaíde B De Oliveira¹  Nelymar M Mendes¹  Rogério O Queiróz¹  Carlos L Zani¹ 

关键词: mosquitoes;    larvicidal;    Aedes fluviatilis;    Asteraceae;    plant extracts;   

DOI  :  10.1590/S0074-02761997000400024

来源: SciELO

【 摘 要 】

Ethanol extracts of 83 plants species belonging to the Asteraceae (Compositae) family, collected in the State of Minas Gerais, Brazil, were tested for larvicidal activity against the mosquito Aedes fluviatilis - Diptera: Culicidae). The extract from Tagetes minuta was the most active with a LC90 of 1.5 mg/l and LC50 of 1.0 mg/l. This plant has been the object of several studies by other groups and its active components have already been identified as thiophene derivatives, a class of compounds present in many Asteraceae species. The extract of Eclipta paniculata was also significantly active, with a LC90 of 17.2 mg/l and LC50 of 3.3 mg/l and no previous studies on its larvicidal activity or chemical composition could be found in the literature. Extracts of Achryrocline satureoides, Gnaphalium spicatum, Senecio brasiliensis, Trixis vauthieri, Tagetes patula and Vernonia ammophila were less active, killing more than 50% of the larvae only at the higher dose tested (100 mg/l).

【 授权许可】

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