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A preliminary model to simulate the effect of insecticides on a spider-leafhopper system in the paddy field

  • Published:
Researches on Population Ecology

Summary

On the basis of life-table studies of the green rice leafhopper,Nephotettix cincticeps Uhler, a descriptive model was constructed to simulate the life system of leafhoppers in the paddy field.

Computer simulation demonstrated the existence of an optimum ratio of predators to prey in utilization of spiders for the control of leafhoppers. Also the population density ofLycosa which prey upon leafhoppers appears to determine the feasibility of controlling leafhoppers with reduced number of applications of selective insecticides. The increase of leafhoppers after application of non-selective insecticides was also simulated by the proposed model.

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References

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Authors and Affiliations

  1. Division of Entomology, Prefectural Institute of Agricultural and Forest Science, Ino, 781, Kochi, Japan

    Takafumi Sasaba & Keizi Kiritani

  2. Department of Earth Sciences, Nagoya University, Chikusa, 464, Nagoya, Japan

    Tatsuo Urabe

Authors
  1. Takafumi Sasaba
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  2. Keizi Kiritani
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  3. Tatsuo Urabe
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Additional information

A part of this research was supported by science research fund from the Ministry of Education.

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Sasaba, T., Kiritani, K. & Urabe, T. A preliminary model to simulate the effect of insecticides on a spider-leafhopper system in the paddy field. Res Popul Ecol 15, 9–22 (1973). https://doi.org/10.1007/BF02510706

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  • DOI: https://doi.org/10.1007/BF02510706

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