The protection of agricultural crops, forest, and man and his domestic
animals from annoyance and damage by various kinds of pests remains a
chronic problem. As we endeavor to improve pro- duction processes and to
develop more effective and acceptable tactics for achieving this
protection, we must give high priority to all potentially useful
techniques for the control and management of insects. Pest control is
recognized as an acceptable and necessary part of modern agriculture.
Methods employed vary greatly and tend to reflect compromises involving
3 determining factors: technological capability, economic feasibility,
and social acceptability. How- ever, these factors are also subject to
change with time since each involves value judgments that are based on
available information, cost, benefit considerations, the seriousness of
the pest problem, and the political climate. Whatever method is chosen,
energy resources continue to dwindle under the impact of increasing
popu- lation, and it is inevitable that greater reliance must be placed
upon renewable resources in pest management. One alternative is the use
of a pest management method that uses the energy of the pest's own
biomass to fuel a self-perpetuating control system. The use of
biological control agents for the control of pests has long been an
integral part of the pest management strategy in crop production and
forestry and in the protection of man and animals. The importance and
unique advantages of the method are well recognized; numerous treatises
deal with accomplishments and methodologies.