Vol. 12, Special Issue 9 (2023)

Author(s):
Sanjay HN, R Manjunatha, G Narasareddy, Vidya Mulimani and K Murali Mohan

Abstract:
Evaluation of insecticidal spray for control of tea mosquito bug, Helopeltis antonii Sign. On tamarind was conducted during 2021 – 22; all treatment combinations are superior over control in suppressing tea mosquito on tamarind. Application of fipronil 5% SC (2ml/l) was the most effective in reduction of tea Mosquito bug population followed by profenofos 50% EC (2 ml/l) and lambda cyhalothrin 5% EC (1.5ml/l). When Incremental benefit cost ratio was considered among different combination of treatments first best treatment is profenofos 50% EC (2 ml/l), resulted in yield of (98 kg) of quality fruits per tree with monetary returns of Rs. (1940 tree^-1) and an Incremental benefit cost ratio (IBC) of 1: 9.1.