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APS » Journals » Phys. Rev. E » Volume 62 » Issue 5
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Phys. Rev. E 62, 7024–7030 (2000)

Cellular automata model for citrus variegated chlorosis

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M. L. Martins, G. Ceotto, S. G. Alves, C. C. B. Bufon, and J. M. Silva
Departamento de Física, Universidade Federal de Viçosa, 36571-000, Viçosa, Brazil

F. F. Laranjeira
Instituto Agronômico de Campinas, 13001-970, Campinas, Brazil

Received 14 June 2000; published in the issue dated November 2000

A cellular automata model is proposed to analyze the progress of citrus variegated chlorosis epidemics in São Paulo orange plantations. In this model epidemiological and environmental features, such as motility of sharpshooter vectors that perform Lévy flights, level of plant hydric and nutritional stress, and seasonal climatic effects, are included. The observed epidemic data were quantitatively reproduced by the proposed model on varying the parameters controlling vector motility, plant stress, and initial population of diseased plants.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.62.7024
DOI:
10.1103/PhysRevE.62.7024
PACS:
87.10.+e, 87.19.Xx, 87.23.Cc
 
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