Mosab Nouraldein Mohammed Hamad2023-12-132023-12-132018https://ds.eaeu.edu.sd/handle/10.58971/808There are almost 4000 species of cockroaches. About 50 species have become domestic pests and the most important medically are Blatella germanica ( the German cockroach), Periplaneta Americana ( the American cockroach) , Planeta orientalis( the oriental cockroach) and planeta australiae ( the Australian cockroach).other