Concern has been expressed about the problems that accompany purely chemical control of agricultural pests, namely, environmental degradation, the development of resistance by pests to chemical toxins, and the worldwide elevation of certain species from relatively innocuous to highly destructive levels (13, 18, 19, 51,104). In fact, some authors contend that man is presently addicted to pesticides (77, 104). These critics generally recognize that it is desirable to substitute, where possible, cultural and biological control practices for chemical control and to use the latter, when necessary, more judiciously. This approach is usually referred to as integrated pest management (IPM), which has its roots in the earlier concept of integrated control (96). Any comprehensive analysis of an agroeeosystem, however, must include the biology of the plant. Hence a more appropriate terminology for this area of study is crop production and integrated pest management (CP/IPM).