Nematodes
The "roundworms" or "nematodes" species are very difficult to distinguish; over 80,000 have been described, of which over 15,000 are parasitic, including pathogens in most plants and animals. From an agricultural perspective, there are two categories of nematode: predatory ones, which will kill garden pests and pest nematodes which attack plants and those that act as vectors spreading plant viruses between crop plants. However, it is worth noting that there are many species of nematodes that play an important role in maintaining ecological balance. For example, some nematodes are natural predators of garden pests, helping to control populations of harmful insects and other pests. By preying on these pests, predatory nematodes can help reduce the need for chemical pesticides and other harmful interventions. Are you interested in such examples of research results? You can get healthcare essay writing help detailing the negative and positive effects of pests on various fields of ecology, agriculture, and medicine.