Study of phytotoxicity of test products containing soapnut powder

The research work was conducted to Study of phytotoxicity of test products containing soapnut powder was carried out at Department of Agricultural Entomology, College of Agriculture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri, (MS) India during 2023-2024. The study assessed the Phytotoxic effect for water dispersible powder formulation. The formulations tested included different products developed by using commercial grade five carriers such as barium sulphate, bentonite, fuller’s earth, kaolin and talc; one dispersing agent, naphthalene sulphonate condensate (NSC); one wetting agent, sodium lauryl sulphate (SLS); and an active ingredient, soapnut powder was tried for the WDP formulation. The observations recorded for symptoms like leaf injury on tips/surface, wilting, vein clearing, necrosis, epinasty, hyponasty and chlorosis/scorching showed that there was no phytotoxic effect of the water dispersible powder formulation on the tested plant for 3-10 gm/l of the doses evaluated in the experiment. This indicated that there was no any phytotoxic effect observed after application of soapnut based formulations at the evaluated doses.