Year-end Sale % OFF 
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.
Highlights
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
The larvicidal activity of total extract A. repens was tested with 9 logarithmic concentrations from 3.05 to 781.25 ppm with each concentration replicated at least 4 times
Summary
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. Bio pesticides have been found to contain natural constituents of plants, animals, bacteria, viruses and fungi that have been proposed as an alternative to chemical pesticides for insect control These materials are harmless to humans, animals and the environment and are decomposed in soil and are not stored in plants or animals.[5] Over the past two decades, numerous extracts or essential oils from indigenous plants have been evaluated against larvae of An. stephensi.[6] Many of vector borne diseases are preventable through informed protective measures. This study aimed to study the larviciding activity of total extract of A
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
