Abstract

                                Application of cartap in the nursery at 1.0 kg a.i./ha did not have a negative impact on the populations of Lvcosa psendoannulaia, Tetragnatha javana, Cyrtorrhinus lividipennis and Paders tuscipes in the main field. However, cartap at higher dose and chlorpyriphos as seedling treatment were found safer to L. pseudoamulata. Application of cartap and carbofuran in the nursery five days before pulling cat was found to be very effective in containing the populations of both Nephotettix virescens Distart and Nilsparvata ingens Stal. in the main field upto 40 days after transplaming.

Key words : Predators, spiders, nursery treatment, insecticides, safety to predators