The Oriental cockroach (scientific name: Blatta orientalis) is the largest cockroach in the world.Oriental cockroaches are extremely greedy, and they like to eat all kinds of food, whether dirty, smelly, or fragrant, or human sputum and feces. They often vomit part of the food they have eaten from t...
German cockroach (Blattella germanica) is the most widely distributed and most difficult to control type of household pests in the world.German cockroach originated in Africa with high temperature and high humidity, and still prefers to live in a relatively warm and humid environment. Nymphs have th...