Abstract

Experiments were conducted at the Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore to assess the compatibility of Confidence® (imidacloprid 17.8% SL) with other chemical pesticides on cotton, bhendi and chilli. The physical stability in terms of emulsion stability revealed that out of eight pesticides tested namely, azoxystrobin, wettable sulphur, carbendazim, spiromesifen, dicofol, neem oil, neem seed kernel extract and emamectin with imidacloprid 17.8% SL at 25 g a.i./ha, none of these products produced creaming matter or sediment, more than 2.0 ml at the top or bottom of the 100 ml cylinder. The results confirmed the physical stability of these pesticides with imidacloprid 17.8 % SL. The phytotoxic effects of these combination products on cotton, bhendi and chilli revealed that imidacloprid 17.8% SL at 25g a.i./ha with the above eight pesticides at recommended doses had not caused any phytotoxic symptoms such as injury to leaf tip and leaf surface, wilting, vein clearing, necrosis, epinasty and hyponasty

Keywords: Imidacloprid, compatibility, insecticides, fungicides, botanicals