02148nas a2200253 4500008004100000245017300041210006900214300001200283490000600295520125600301653002401557653002601581653002401607653001801631653000901649653001901658100003001677700002901707700002001736700002501756700002301781700002301804856006701827 2011 eng d00aChemical Composition and Larvicidal Activity of Essential oil of Cupressus arizonica E.L. Greene Against Malaria Vector Anopheles Stephensi Liston (Diptera: Culicidae),0 aChemical Composition and Larvicidal Activity of Essential oil of a135-1390 v33 a

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–mass spectrometry (GC–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.

10aAnopheles stephensi10aBotanical insecticide10aCupressus arizonica10aEssential oil10aIran10aVector control1 aSedaghat, Mohammad, Mehdi1 aDehkordi, Alireza, Sanei1 aKhanavi, Mahnaz1 aAbai, Mohammad, Reza1 aMohtarami, Fatemeh1 aVatandoost, Hassan uhttps://www.phcogres.com/article/2011/3/2/1041030974-849081962