Histopathological effects of entomopathogenic Bacillus thuringiensis isolates on the midgut of the yellow mealworm larvae

摘要

Tenebrio molitor, otherwise known as the yellow mealworm belonging to the family Tenebrionidae, is found worldwide but is more common in warm, dry climates (17). In natural habitats this pest is found under the bark of decaying logs and trees, whereas in urban environments it usually infests flour, cereals and grains. The female mealworm lays hundreds of eggs which hatch into tiny larvae. Despite their small size, T. molitor larvae destroy a considerable amount of stored products (8).