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Evaluation of botanicals against: mosquito larvae to the extracts Acalypha indica L.

100%

Muthaiyan R. , Phejen P. , Nienu R. , Periyasamy S. , Nandakumar R.

World News of Natural Sciences

2020

tom 30

nr 2

169-177

Acalypha indica is the important medicinal herb found commonly on the waste land and roadsides throughout India. Their various uses in traditional medicine are for curative properties against inflammation, rheumatism, respiratory disorders, fever, bacterial infection and jaundice. The mosquito control potential of common indigenous plant, Acalypha indica. Mosquito species used for toxicity bioassay are Culex quinquefasciatus, Anopheles gambiae and Armigeres subalbatus. Acalypha indica activities of the plant extracts vary according to the species. The mortality rate of 4th stage larva at 5% concentration was significantly higher than the mortality, rates at 1%, 2%, 3% and 4% concentrations of crude plant extract at 12 hours and 24 h exposure. A higher mortality rate was observed at 24 h bioassay than at 12 h. Since these plants are available very easily and cheaply, we can use these extracts in the field.