The Biological Research Unit (BRU) conducts mission-oriented entomological research with stored-product insects and is one of five research units at the Grain Marketing and Production Research Center in Manhattan, Kansas. The primary responsibility of this group is to develop ecologically-based technologies to replace or reduce the use of traditional pesticides. Multidisciplinary teams conduct research on (1) ecology, population dynamics, and behavior of pest and beneficial insects leading to the development of expert systems for pest management in farm and commercial storages; (2) pest management systems that utilize parasites, predators, and pathogens to control stored product insects; (3) novel control techniques based on a knowledge of insect genetics, physiology, biochemistry, toxicology, and molecular biology; and (4) pest management strategies focusing on the efficient use of pesticides, aeration, monitoring techniques, and resistance management. Insect images in several sizes on display at http:// bru.gmprc.ksu.edu/db/insect/search_results.asp.