Effect of aqueous extract of different botanicals against chilli thrips, Scirtothrips dorsalis Hood

The experiment was carried out to investigate the efficacy, aqueous extract of 8 botanicals viz., Strychnos nux-vomica seed, Justicia adhatoda leaf, Pongamia pinnata seed, Thevetia peruviana Seed, Abrus precatorius seed, Chrysopogon zizanioides root, Datura metel leaf and Acorus calamus rhizome against S. dorsalis in three concentrations viz., 1%, 3% and 5%. Results indicated that the highest total per cent mortality of S. dorsalis was recorded in A. precatorius seed extract 5% (77.78 & 81.11%) followed by Acorus calamus rhizome extract 5% (74.44 & 75.56%) C. zizanioides root extract 5% (67.78 & 68.89%) and D. metel leaf extract 5% (61.11 & 65.56%). Less effects against S. dorsalis is seen in S. nux-vomica seed extract 1% (5.56 & 8.89%) and J. adhatoda leaf extract 1% (7.78 & 11.11%).