Was going through the Bhendi cultivation wiki which has a suggestion of Nemagon application for Nematode management. “Application of Nemagon at the rate of 74 litres per acre before sowing also can control the pests”. Nemagon is Dibromochloropropane (DBCP) which is banned in most countries(not sure of India) and can cause extensive health issues.
Fellow farmers a cautionary note, please do not blindly follow the advise on this forum, do your research before implementation
Thanks