@article {957, title = {Chemical Composition and Larvicidal Activity of Essential oil of Cupressus arizonica E.L. Greene Against Malaria Vector Anopheles Stephensi Liston (Diptera: Culicidae),}, journal = {Pharmacognosy Research}, volume = {3}, year = {2011}, pages = {135-139}, chapter = {135}, abstract = {

Background: Using botanical insecticides as an alternative biocontrol technique for vector control is considered by some scientists. Materials and Methods: Chemical composition of the essential oil was analyzed using gas chromatography{\textendash}mass spectrometry (GC{\textendash}MS). In addition, the mosquito larvicidal activity of leaf essential oil of Cupressus arizonica was investigated against fourth instar larvae of laboratory-reared An. stephensi according to the method of the World Health Organization. Results: Of 46 constituents in the oil, limonene (14.44\%), umbellulone (13.25\%) and α-pinene (11\%) were determined as the main constituents. Cupressus arizonica volatile oil showed significant larvicidal activity against An. stephensi with LC50 and LC90 values 79.30 ppm and 238.89 ppm respectively. Clear dose-response relationships were established with the highest dose of 160 ppm essential oil with almost 100\% mortality. Discussion: The results from this study revealed that C. arizonica essential oil could be considered as a natural larvicide against An. stephensi. However, the field evaluation of the formulation is necessary.

}, keywords = {Anopheles stephensi, Botanical insecticide, Cupressus arizonica, Essential oil, Iran, Vector control}, doi = {10.4103/0974-8490.81962}, author = {Mohammad Mehdi Sedaghat and Alireza Sanei Dehkordi and Mahnaz Khanavi and Mohammad Reza Abai and Fatemeh Mohtarami and Hassan Vatandoost} }