Nematodes are small cylindrical worms, in most cases microscopic. They are aquatic animals that inhabit oceans and seas, freshwater courses, body fluids, and of particular importance for agriculture, the film of water present between soil particles, and in plants.
They inhabit all types of soil, but appear to favour those with a high sand content, where adequate aeration and quick drainage to field capacity provide optimal conditions for free movement and other activities. Nematodes can survive prolonged unfavourable conditions by entering dormant states.
