Assessment of Soil Root-Knot Nematodes in Some Selected Plant Cultivated at Nagwamatse Farm, Gusau, Zamfara State Nigeria

This research was conducted to assess the incidence of root-knot disease on cucumber, tomato, and strawberry at Nagwamatse farm along Wanke/ Dan Sadau road in Gusau Zamfara state.Three (3) different samples of soil and roots of Cucumber, Strawberry, and Tomato plant were collected in a polythene bags from Nagwamatse farms for duration of three (3) month. The result showed that the crops there were infected with root-knot nematodes. Highestpercentage (%) frequency was found in cucumber plant, closely followed by strawberry plant and the lowest frequency was found in the tomato plant. The greatest egg mass and gall formation was found in cucumber plant, and show high incidence of Nematodes. Meloidogyne incognita and M. javanica, were identified to infect tomato, M. javanica and M. artellia were found in cucumber and M. javanica and M. hapla were found in strawberry. Out of the identify species, M. javanica was more frequent as it was found in all the selected plants species