Study on Managing Root-knot Nematode (Meloidogyne Incognita (Kofoid & White) Chitwood) Infection on Tuberose (Polianthes Tuberosa Linn) Through Treatment of Mother Bulbs

Investigations on the effect of soaking of the mother bulbs of tuberose (Polianthes tuberosa Linn.) cv. Mexican Single with carbosulfan (1000 and 2000 ppm), triazophos (1000 and 2000 ppm) and neem oil (1% and 2%) for one hour revealed that carbosulfan was better than triazophos and neem oil in reducing the Meloidogyne incognita. More than 70% reduction in the number of galls, eggmasses, eggs and the soil population of the juveniles per plant was observed at harvest for bulbs treated with carbosulfan 2000 ppm. Neem oil treatment did not reduce the nematode population significantly.