S.31. Insecticidal properties of a chenopodium-based botanical against virus vectors, Myzus persicae and Frankliniella schultezi
Abstract
The Botanical insecticides composed of essential oils may be an alternative to the more persistent synthetic pesticides for the management of vectors responsible for virus diseases. A proprietary emulsifiable concentrate containing 25% essential oil extract of Chenopodium ambrosoides (EOCA) as the active ingredient was tested with neem extract, insecticide soap, abamectin, dicofol and endosulfan for the control of green peach aphid, Myzus persicae and groundnut thrip, Frankliniella schultezi. The EOCA at 0.5% caused mortality percentage (43.6%) and insecticide soap (55.2%) and were significantly more effective against M. persicae than the control. The extract of C. ambrosoides at the concentration 0.5% gave excellent control of F. schultezi (95.7%) and insecticidal soap (82.6%) than neem oil (17.7%) and water (10.8%). The EOCA proved to be more effective than commercial products in controlling the major virus vectors such as M. persicae and F. schultezi, than neem extract, insecticidal soap, endosulfan and abamectin.
