Predators can also help control your cockroach population. This is hard because most animals don't like to eat cockroaches. A couple of exceptions are hedgehogs and geckos, which will eat cockroaches voraciously. read more
Cockroaches have many natural predators, including toads, frogs, beetles, geckos and iguanas. Some parasitic wasp species will target cockroaches as well. These species lay their eggs inside the egg cases of cockroaches; hatchlings feed upon nearby cockroach eggs. read more
The cockroach is a common species of insect, widely regarded as a pest due to their habit of living in or near human residences. Considered a large insect, some cockroaches, such as the Australian giant burrowing cockroach, can reach 3.5 inches in length. read more
Pretty much any animal that eats insects will eat cockroaches. Few cockroach species produce any sort of effective defensive odor. Some have decent armor plating, but most don’t. Cockroaches are bred commercially to feed to captive reptiles. (Discoid roaches - Blaberus discoidalis, and Dubia roaches - Blaptica dubia - are two common feeder species). read more