Larvicidal Effects of Stem and Fruits of Duranta repens Against the Mosquito Culex quinquefasciatus
نویسندگان
چکیده
In the present study, the larvicidal activity of crude extracts from the stem and fruits, their fractions and fresh fruit juice of Duranta repens were assayed against the larvae of Culex quinquefasciatus. The highest larval mortality was found in chloroform soluble fraction of stem (LC50 = 10.75 ppm in 12 h) and ethanol extract of fruits (LC50 = 8.51 ppm 12 h) of Duranta repens against I instars larvae. Different concentrations of juice and fresh fruit juice also showed potent effects on C. quinquefasciatus and the larvae showed comparative tolerance with the increase of their age and time. These results suggest that the stem and fruits of Duranta repens are very effective natural larvicide and can be useful against Culex quinquefasciatus.
منابع مشابه
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