The broad objective of this project is to optimise a mycopesticide (a pesticide where the main active ingredient is composed of fungus) in order to control the pest, lesser mealworm (Alphitobius diaperinus), in meat chicken sheds. Lesser mealworm (Alphitobius diaperinus), also known as darkling or litter beetle, is a significant insect-pest of the chicken meat industry in Australia and overseas.