INVESTIGATION ON EFFECT OF THEVETIA PERUVIANA (PERS) ON THE MORTALITY OF HOLOTRICHIA SERRATA (FAB) ADULTS (COLEOPTERA: SCARABAIEDAE)

Abstract

White grub is called as Chaffer beetle. White grub is a National pest, it has worldwide distribution. The white grub’s damage agricultural crops and there adults were feed on leaves of economical and medically important host plants like Azadirachta indica, Acacia arabica, Ziziphus zizyphus and Acacia catechu. The Holotrichia serrata (Fab.), Holotrichia fissa (Br.) and Leucopholis lepidophora (Bl.) are important agriculture pest cause damage to commercial crops such as groundnut, potato, pea, maize, sugarcane etc. The bio pesticides or insecticides, an alternative to systematic insecticides and are organic, often low mammalian toxicity and less hazardous to the environment. In present study, the leaf of Thevetia peruviana (Pers.) or Yellow Oleander were extracted in aqueous and treated against the adults of Holotrichia serrata (Fab.). The tested aqueous leaf extract effectively produced 50 % mortality of Holotrichia serrata (Fab.) and their toxicity was 0.025 % after 48 hours bioassay.