Abstract :
Field experiments were conducted during 2013-14 and 2014-15 to evaluate the new insecticides for the management of mite, Polyphagotarsonemus latus banks and dissipation of effective insecticide on capsicum. Among the seven insecticides, mean of two seasons under poly house condition, population was less with spiromesifen (0.06 mites/ leaf) followed by diafenthiuron (2.21 mites/ leaf), triazophos (3.68 mites/ leaf) and thiamethoxam (5.30 mites/ leaf) which were significantly superior over untreated check (11.33). Spiromesifen residues were quantified through regular sampling till the residues are below determination level (BDL) of 0.05 mg kg-1Â following the validated QuEChERS method. The qualitative and quantitative analysis of spiromesifen was performed on LC- MS/MS (PDA). Initial deposits of 1.61 mg kg-1 of spiromesifen detected at 2 hours after last spray, dissipated to BDL at 10th day after spray. The half-life and safe waiting period for harvest was 2.09 and 10.00 days, respectively.
Keyword :
capsicum, mite, spiromesifen, dissipation