EN
Spider parasites belong to many different taxonomical groups. Viruses, bacteria, protists, fungi, nematodes, horsehair worms, wasps and flies can be found in wild populations, but also among invertebrates kept in homes as pets. This article describes the most important parasite species, especially Steinernematidae, Heterorhabditidae and Panagrolaimidae nematodes, and methods for their prevention and eradication.