Biological control against beetles by means of Beauveria bassiana

Nowadays there are few buildings without the contamination of beetles. The beetles do not directly transmit the disease, though there are very unhygienic due to their existence in the swage system and since they bring up the swallowed food and spread their faecal everywhere, therefore being in touch with food can cause food contamination and consequently infection disease such as diarrhea, cholera, etc.Taking into consideration the harmful effects of chemical insecticide, in this research in order to biological control of bath beetles, Beauveria bassiana has been used. The result shows the positive effect of fungus.