The field of insect pathology has grown steadily since its inception as a formal academic discipline in the mid-1940s (Steinhaus, 1949). Concomitantly, the applied side of insect pathology has also grown considerably resulting in the commercial development of bacterial, viral, fungal and nematode entomopathogens as microbial control agents. Their use by organic and conventional growers for the microbial control of arthropod pests of food and fiber crops; by forestry personnel for protection of forests; as well as by health-related and abatement agencies for control of insects of medical and veterinary importance, has also increased. They have been employed in all of the major types of.
