International Journal of Pharma and Bio Sciences
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10.22376/ijpbs.2019.10.1.p1-12
Volume 6 Issue 1
2015 (January - March)
EFFICACY OF NICOTIANA PLUMBAGINIFOLIA (SOLANACEAE) LEAF EXTRACTS AS LARVICIDE AGAINST MALARIAL VECTOR ANOPHELES STEPHENSI LISTON 1901
The best way to control mosquito borne diseases is to control the mosquito population. The present study was executed to evaluate the mosquito larvicidal activity of lessThan i greaterThan Nicotiana plumbaginifolia lessThan /i greaterThan leaves against malarial vector lessThan i greaterThan Anopheles stephensi. lessThan /i greaterThan Crude extracts and three different solvent extracts were bio-assayed against lessThan i greaterThan An. stephensi lessThan /i greaterThan larvae. LC lessThan sub greaterThan 50 lessThan /sub greaterThan and LC lessThan sub greaterThan 90 lessThan /sub greaterThan values were determined appropriately. Qualitative phytochemical tests were also done. Statistical justifications were drawn through Log-probit, regression and ANOVA analyses. Effects of bio-active fractions on some of the non-target water fauna were also examined. Crude extract was considerably mosquito larvicidal. Only ethyl acetate extractives exhibited larvicidal activity amongst all solvent extractives. Cent percent mortality of 1 lessThan sup greaterThan st lessThan /sup greaterThan , 2 lessThan sup greaterThan nd lessThan /sup greaterThan and 3 lessThan sup greaterThan rd lessThan /sup greaterThan instars larvae was noticed within 72 h at 50 ppm concentration. Leaves contained tannins, steroids and flavonoids. Non-target organisms were non-responsive to bioactive fractions. lessThan i greaterThan N. plumbaginifolia lessThan /i greaterThan leaves bear the potentiality to control lessThan i greaterThan An. stephensi lessThan /i greaterThan larvae in a target specific way.
ANIKET SINGH, KUNTAL BHATTACHARYA AND GOUTAM CHANDRA
Anopheles stephensi, Nicotiana plumbaginifolia, larvicide, Non-target organism, Phytochemicals
860-868