Before revision:  In order to understand how mites affect population dynamics of honeybees and the healthy status of colony , we propose and study a brood-adultbee-mite model with time lag from brood to adult bee .
After revision:  In order to understand how mites affect population dynamics of honeybees and the healthy status of colony , we propose a brood-adult bee-mite model in which the time lag from brood to adult bee .