International Journal of Pharma and Bio Sciences
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10.22376/ijpbs.2019.10.1.p1-12
Volume 6 Issue 3
2015 (July - September)
BIOCONTROL EFFICACY OF OPERCULINA TURPETHUM (L.) (CONVOLVULACEAE) LEAF EXTRACTIVES AGAINST LARVAL FORM OF MALARIAL MOSQUITO ANOPHELES STEPHENSI (LISTON 1901)
Vector control is the foremost step to diminish the mosquito borne diseases as the proper vaccinations are yet to develop against those obnoxious diseases. After many resistant cases, it is important to develop other sources of eco-friendly insecticides. The present piece of study was designed to evaluate the mosquito larvicidal efficacy of lessThan i greaterThan Operculina turpethum lessThan /i greaterThan against malarial vector lessThan i greaterThan Anopheles stephensi. lessThan /i greaterThan Hot and cold aqueous leaf extracts, and two different solvent extracts were treated against all the larval instars. LC lessThan sub greaterThan 50 lessThan /sub greaterThan and LC lessThan sub greaterThan 90 lessThan /sub greaterThan values were determined. Statistical justifications were made by log-probit, regression and ANOVA analyses. Cent percent mortality was found against 1 lessThan sup greaterThan st lessThan /sup greaterThan instar larvae at a concentration of 0.5% hot aqueous and 160 ppm solvent extracts after 72 h of exposure. Non-target organisms were nonresponsive after treatment with the same. From the present study it can be concluded that the bioactive fractions from lessThan i greaterThan O. turpethum lessThan /i greaterThan leave extracts have remarkable mosquito larvicidal potentiality.
KUNTAL BHATTACHARYA, AND GOUTAM CHANDRA
Operculina turpethum, Anopheles stephensi, non-target organisms, larvicide
460-468