Spatial distribution of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in citrus orchards
DOI:
https://doi.org/10.1590/S0103-90162010000500008Keywords:
Citrus sinensis, psyllid, probability distributions, negative binomial distributionAbstract
The psyllid Diaphorina citri Kuwayama is one of the most important pests of citrus, mainly because it is the vector of the bacterium that causes huanglongbing (HLB) or 'Greening' disease. To study the spatial distribution of nymphs and adults of this pest, an experiment was carried out in two 'Valencia' sweet orange orchards, four and 12 years of age, established in Matão, central area of São Paulo state, Brazil. The following dispersion indices were used to study pest aggregation in the citrus plants: variance/mean relationship (I), index of Morisita (Iδ), coefficient of Green (Cx), the![a08form10.gif](../../../../../img/revistas/sa/v67n5/a08form10.gif)
![a08form10.gif](../../../../../img/revistas/sa/v67n5/a08form10.gif)
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Published
2010-10-01
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Section
Entomology
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All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.How to Cite
Spatial distribution of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in citrus orchards . (2010). Scientia Agricola, 67(5), 546-554. https://doi.org/10.1590/S0103-90162010000500008