A New approach to quantify crop losses due to rice pests in varying production situation

A New approach to quantify crop losses due to rice pests in varying production situation

S. Savary, F.A. Elazegui, H.O. Pinnschmidt , N. P. Castilla, P.S. Teng

Studies on crop losses are often reported in the literature in the form of lengthy lists of harmful agents, ranked with more or less accuracy using various criteria, including farmers' perceptions or scientists' opinions. As a result, a rather static picture of this topic tends to emerge. The view expressed in this report is very different: analysis of crop loss due to pests is a scientific area where (a) hypotheses are forwarded, (b) formal experiments can be conducted, (c) hypotheses are refuted, and (d) new hypotheses can be formulated. This is, in fact, a fast expanding research domain, where new techniques are assuming increasing importance, such as the use of several multivariate statistical techniques, data acquisition methodologies, and simulation modeling (Rossing et al. 1993, Pinnschmidt et al. 1995). These methodological developments build upon landmark publications (e.g., Chiarappa 1971, Zadoks and Schein 1979, Boote et al. 1983, Teng 1987). 

Specifications

  • Publisher: International Rice Research Institute
  • Language: English
  • ISSN: 0117-8180
  • ISBN: 971-22-0095-7
  • Pages: 59

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