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The Assessment of Crop Losses in Cereals

  • P. T. Walker
Article

Abstract

The reasons for assessing crop losses due to pests of cereals are reviewed; for making decisions in pest management based on costs and benefits, for allocating resources on the most important pests, and as a guide to how yield is lost. Crop yield is seen as a balanced system, with inputs and output. The methods of quantifying pest attack, measuring losses and the difficulties met are discussed: the interaction of losses, interplot interference, mixed crops, loss distribution and crop compensation. Surveys of loss are described, with examples.

Key Words

Cereals pest assessment crop losses crop yield integrated pest management 

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Copyright information

© ICIPE 1983

Authors and Affiliations

  • P. T. Walker
    • 1
    • 2
  1. 1.Centre for Overseas Pest ResearchLondonUK
  2. 2.COPR. Porton DownSalisbury, WiltshireUK

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