ISSN : 0975-9492


Open Access

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Title : Investigation of the effects of two different biopesticides on the mortality of Holotrichia serrata F. adults (Coleoptera: Scarabaiedae)*
Authors : Theurkar SV
Keywords : Biopesticide, efficacy, mortality, plant extract, toxicity
Issue Date : July 2014
Abstract :
The scarab adults are called as ‘May- June beetles’ or ‘Chaffer beetles’ which are National pest and it causing serious damages to the economical crops as well as medicinal plants. The synthetic chemical pesticides are hazardous to the environment and human being. Recently, use of the Biopesticides are the alternative to the chemical or synthetic insecticides and the plant extractives are use for manage the pest is gaining importance. The effects of plant extractives and efficacy of biopesticides viz. Thevetia peruviana (Pers) and Datura innoxia (Mills) were studied against the mortality of Holotrichia serrata (Fab). Bioassay was tested and to determine the effects of varying concentrations. The Thevetia peruviana (Pers) were more efficient than Datura innoxia (Mills); 50% mortality was occurred after 48 and 96 hours at the concentration of 0.025% and 0.20% respectively. It revealed that both plant extract concentrations were effective against Holotrichia serrata (Fab) adults. The toxicity of Thevetia peruviana (Pers) leaves > Datura innoxia (Mills) seeds to minimize the infestation of scarab species, Holotrichia serrata (Fab) beetles. In addition, the effects of biopesticide on ovposition were investigated and adults laid lowest numbers of eggs.
Page(s) : 397-401
ISSN : 0975-9492
Source : Vol. 5, No.7