Abstract
It is closely related to zoology and botany, which are the origin of all biological sciences. The study of plant-pathogenic nematodes requires a great understanding and knowledge of general zoology, invertebrate zoology, parasitology, and animal behavior science, which helps understand the nutritional behavior of nematodes on their plant hosts and thus the effects of different control methods on nematodes, as well as being familiar with botany and its various branches, especially the functions of organs, appearance, and internal anatomy, especially of the root system, and these are requirements for understanding the different and mutual influences between nematodes and plants.