Forest Insects pp 145-166 | Cite as

Prevention of Insect Outbreaks

  • Alan A. Berryman
Part of the Population Ecology: Theory and Application book series (POPE)


In the professional disciplines of forestry, agriculture, and medicine, the practice of prevention involves the manipulation of environmental conditions so that they become unfavorable for the reproduction and survival of pest organisms. In this way pest populations are kept at low densities and outbreaks are avoided. For example, medical practitioners may prescribe a change of diet or life-style designed to reduce stress and thereby improve the resistance of their patients to disease-causing microorganisms. What they are doing, in fact, is making the environment unfavorable for the microorganism by ‘‘tuning up” the patient’s defense systems. Similarly, the forester may prescribe fertilization or thinnings to reduce the stress on forest stands and so improve their defenses against insect attack. Because preventive treatments rely on an understanding of the relationships between the pest organism and its environment, prevention is really the practice of applied ecology.


Natural Enemy Bark Beetle Gypsy Moth Pest Population Silvicultural Practice 
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References and Selected Readings

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Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • Alan A. Berryman
    • 1
  1. 1.Washington State UniversityPullmanUSA

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