TOMATO ROOT-KNOT NEMATODE CONTROL BY CHEMICAL TREATMENTS, SOIL SOLARIZATION AND RESISTANT VARIETIES

A research has been carried out in greenhouse to individuate a strategy for the control of root-knot nematode Meloidogyne incognita (Kofoid et White) Chitwood on tomato. Chemical, physical (solarized plots) and biological (susceptible and tolerant or resistant varieties) treatments were compared. Number of root hyperplastic formations, their dimensions and distribution on young and old roots, fresh and dry weights were recorded, as well as the infested plant percentage and the nematode larva number in soil samples. Phosphorodithioate, at the highest rate, and the soil solarization combined with a resistant variety have showed the best plant protection.