ABSTRACT
Public and scientific awareness of the environmental problems caused by chemical insecticides led to the search for new approaches to insect control. Midgut studies were particularly stimulated after realization that the gut is a very large and relatively unprotected interface between the insect and its environment
4.1 Introduction .................................................................................................................................... 93 4.2 Gut Morphology and Function ....................................................................................................... 94 4.3 Digestive Enzymes ......................................................................................................................... 98
4.3.1 Digestion of Proteins ......................................................................................................... 98 4.3.2 Digestion of Carbohydrates ............................................................................................. 100 4.3.3 Digestion of Lipids and Phosphates .................................................................................101
