Propagation and pathogenicity of entomogenous fungi for controlling Blattella germanica

German cockroach, Blattella germanica, a globally distributed sanitary pest, has become a big threat to human health. The commonly used pesticides against B. germanica are chemicals pesticides. However, the fact that B. germanica has developed resistance to such chemical pesticides turns our eyes to biopesticides. Entomogenous fungi are just an important type of such biopesticides. The anti- B. germanica activity of entomogenous fungi has already been studied.However, due to the existence of antibacterial peptides and endosymbionts, B. germanica shows great immunity to entomogenous fungi. In this paper, we review research advances in the species, propagation, infection, and pathogenic mechanism of entomogenous fungi for controlling B. germanica and discuss its future direction, with the purpose of providing a scientific basis for sustainable management of B. germanica.