Prevalence, incidence and distribution of citrus variegated chlorosis in Bahia, Brazil

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Laranjeira, F.F.; Silva, L.G.; Fonseca, E.L.; Silva, S.X.B.; Rocha, J.B. et al.: Prevalence, incidence and distribution of citrus variegated chlorosis in Bahia, Brazil. In: Tropical Plant Pathology 33 (2008), Nr. 5, S. 339-347. DOI: https://doi.org/10.1590/S1982-56762008000500001

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1507

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Sum total of downloads: 120




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Abstract: 
Citrus variegated chlorosis (CVC) is one of the most important diseases for Brazilian citriculture. It is caused by Xylella fastidiosa subsp. pauca, a xylem limited, cycadelid and budwood transmitted bacterium. In Bahia, the second most important citrus region in Brazil, CVC has been present since 1997. Our objectives were to characterize the regional spatial pattern of CVC and to establish a relationship between epidemiological variables and horticultural practices, as well as to evaluate whether control measures used so far have been effective and, based on that, to conceive suitable control measures. A series of surveys were performed in two regions of Bahia State (Recôncavo Baiano and Litoral Norte), along with a survey of horticultural and control practices associated with sampled groves. CVC was restricted to Litoral Norte region, especially to three municipalities along the border between Bahia and Sergipe States. The mean CVC incidence in these municipalities followed a gradient, higher in the countryside and decreasing along the coast. Presence and dissemination of CVC was related to poor nursery practices, a massive use of a susceptible orange variety, and an extreme concentration of orange groves in high incidence municipalities, as well as to the absence of specific CVC control. Considering that CVC was not found in Recôncavo Baiano, this region could be considered a "CVC free zone" by the local government. Copyright by the Brazilian Phytopathological Society.
License of this version: CC BY-NC 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2008
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
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1 image of flag of Germany Germany 72 60.00%
2 image of flag of United States United States 19 15.83%
3 image of flag of China China 12 10.00%
4 image of flag of Hong Kong Hong Kong 2 1.67%
5 image of flag of France France 2 1.67%
6 image of flag of Italy Italy 1 0.83%
7 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 0.83%
8 image of flag of India India 1 0.83%
9 image of flag of Indonesia Indonesia 1 0.83%
10 image of flag of Hungary Hungary 1 0.83%
    other countries 8 6.67%

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