Effect of some organic materials on root-knot nematodes on tomatoes in field preliminary experiments

Abstract

The effect of organic materials applied to soil in attempts to control plant-parasitic nematodes and increase yields has been examined in many experiments. The suppression or reduction of noxious nematodes could be due to many factors none of which has been identified specifically (Marshall, 1977). Experiments were done mainly in pots and rarely in the field. Often excessive rates of amendments were applied and then nutrient content ignored. This paper reports the effect of five commercial organic materials on Meloidogyne incognita (Kofoid et White) Chitwood attacking on tomatoes in the field.