@article {731, title = {Larvicidal and Pupicidal activity of Clerodendrum philippinum Schauer Leaf Extracts against Anopheles stephensi and Aedes aegypti}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {1137-1142}, type = {Original Article}, chapter = {1137}, abstract = {

Objective: The purpose of this study is to investigate the larvicidal and pupicidal activity of Clerodendrum philippinum leaf extracts against disease causing vectors Anopheles stephensi and Aedes aegypti. Methods: Five different concentrations (200, 300, 400, 500 and 600 ppm) of leaves were prepared by using aqueous (distilled water), ethanol, methanol, n-hexane, chloroform and tested for both the activity. The LC50 and LC90 values of leaf extracts were determined with the help of probit analysis. Results: Among the different extracts of leaf screened, the ethanol extract of C. philippinum was recorded the highest larvicidal and pupicidal activity of 100 \± 1.9 \% (1st instar) and 58 \± 0.8 \% at 600 ppm concentration for controlling An. stephensi, respectively. Similarly for Ae. aegypti, 97 \± 1.2 (1st instar) and 51 \± 0.5 (pupa) percentage of inhibition were achieved for the same solvent extracts of the leaf which were maximum than others. Moreover, the values of LC50 and LC90 clearly indicate that the activity of both larvicidal and pupicidal are not only solvent extracts dependant but also depend on their concentration. Conclusion: The obtained data highlight the potential role of ethanolic extracts of C. philippinum for controlling An. stephensi and Ae. aegypti mosquitoes at their larval and/ pupal stages of development.

}, keywords = {Aedes aegypti, Anopheles stephensi, Clerodendrum philippinum, Larvicidal activity, Pupicidal activity}, doi = {10.5530/pj.2018.6.194}, author = {Pranati Dhal and Jyoti Ranjan Rout and Preeti Krishna Dash and Sagorika Panda and Pallabi Pati and Chandi Charan Rath and Chinmay Pradhan and Santi Lata Sahoo} } @article {548, title = {Larviciding Activity of Acroptilon repens Extract against Anopheles stephensi, Culex pipiens and Culex quinquefaciatus under Laboratory Conditions}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {March 2018}, pages = {453-456}, type = {Original Article}, chapter = {453}, abstract = {

Introduction: Due to the emergence of insecticide resistance among the vectors of human diseases, there is a need to explore the use of plant extracts which are safe alternatives to conventional chemical larvicides used in control of vector-borne diseases. The aim of this study was to evaluate the larvicidal activity of Acroptilon repens against third instar larvae of Anopheles stephensi, Culex pipiens and Culex quinquefaciatus. Materials and Methods: The aerial parts of A. repens plants was dried in the shaded places for 3 days at 26-28\°C. The leaves, flowers and stems were blended to crashed form using an electric blender. The larvicidal activity of total extract of A. repens were evaluated against third instar larvae stage of mosquito vectors, An. stephensi, Cx. pipiens and Cx. quinquefaciatus under laboratory conditions with 24h exposure period. Data were subjected to probit regression analysis in order to estimate the lethal concentrations for 50\% and 90\% mortality values. Result: The extract of A. repens exhibited significant larvicidal activity against third instar larvae of An. stephensi, with 24h LC50 of 0.2970 and LC90 of 2.2097 mg/l. The LC50 and LC90 values were 2.5047 and 24.7374 mg/l for Cx. pipiens and 2.9047 and 16.1459 mg/l for Cx. quinquefaciatus. Conclusion: The extract of A. repens can serve as a natural larvicide against An. stephensi, Cx. pipiens and Cx.quinquefaciatus. According to the larvicidal properties of this plant, formulating an extract of A. repens which is known as an abundant agricultural weed in Iran creates an alternative to chemical larvicides and providing a job opportunities.

}, keywords = {Acroptilon repens, Anopheles stephensi, Culex pipiens, Cx. quinquefaciatus, Larvicidal activity, Total extract}, doi = {10.5530/pj.2018.3.74}, url = {http://fulltxt.org/article/507}, author = {Ramesh Toolabi and Mohammad Reza Abai and Mohammad Mehdi Sedaghat and Hassan Vatandoost and Mansooreh Shayeghi and Saeed Tavakoli and Mohammad Sistanizadeh Aghdam} }