Citation:

Principles of Pest Control. Pages 27-42. In: Dennis S Hill. 1987. Agricultural Insect Pests of Temperate Regions and their Control. Cambridge Press, Cambridge UK, 659 pages.

Keywords: definition of a pest, economic pest, economic damage, economic injury level, economic threshold, pest complexes, pest spectrum pest load, key pests, serious (acute) pests, major pest, minor pest, potential pest, secondary or sporadic pest, pest populations, pest species accumulation, pest species recruitment, development of pest status, ecological changes, increase in numbers, population resurgence, migration, character of food supply, monoculture, continuous cropping, minimum cultivation, multiplication of suitable habitats, loss of competing species, change of host/parasitoid relationships, spread of insects and crops by man, stowaways in air transport, deliberate introduction by man, economic changes, change in demand, change in production costs, pest damage, direct effects of

insect feeding, indirect effects of insects on crops, economics of pest attack and control, decision to take action, cost/potential benefit ratio in decision, relation between yield increase and pesticide dosage, crop yields, economics of national pest control programs, pest assessment, efficiency of pest control measures, forecasting pest attack, emergence or occurrence warnings, forecasting by sampling, forecasting by prediction, rainfall, climate