Efficacy of chemicals as seed dresser against Meloidogyne incognita on bitter gourd and round melon

All the three chemicals viz., carbofuran (40F), carbosulfan (25 WP) and phenamiphos (40EC) inhibited larval penetration and the development of females on roots at seventh and thirtieth day after germination, thus resulting in reduced gall formation and nematode reproduction at 50 and 60 days in case of bitter gourd and round melon respectively. There was also an increase in the plant growth (shoot length and shoot weight) of both the crops. Both carbofuran and phenamiphos even at lower concentration of 1 per cent provided sufficient initial protection against M. incognita on both the crops.