Indian Journal of Nematology

An experiment conducted under glasshouse conditions for the management of Meloidogyne incognita on tomato with avermectin, revealed that the plants treated with avermectin 75% as seedling root dip recorded the maximum shoot length of 38.8 cm, fresh shoot weight of 22.3 g, dry shoot weight of 10.7 g and fruit yield of 324.3 g. Significantly increased root length (26.4 cm), fresh root weight (7.3 g), and dry root weight (2.6 g) were also recorded in plants treated with avermectin 75% seedling root dip. The treatment was on par with carbofuran 3 G @ 1 kg a.i./ha and avermectin 100% as seedling root dip. Among all treatments, highest reduction in root knot index (1.3), soil nematode population (132.8), number of females/g root (12.8), egg masses/g root (5.4), and eggs/egg mass (125.2) were recorded by avermectin 100% as seedling root dip. It was followed by and on par with carbofuran 3 G @ 1 kg a.i./ha and avermectin 75% seedling root dip. Similarly, enhanced activities of total phenol, peroxidase and IAA oxidase activity in tomato plants infected with M. incognita was noted compared to control.