O sucesso da campanha de erradicação do cancro cítrico no estado de São Paulo, Brasil

Belasque, José; Fernandes, Nádia; Massari, C. A.

doi:10.1590/s0100-54052009000200001

Cited by 7 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These strategies were initially based on eradication and exclusion of the pathogen (Leite Jr, 1990; Gimenes‐Fernandes et al. , 2000; Belasque Jr et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Annual and polyetic progression of citrus canker on trees protected with copper sprays

et al. 2010

View full text Add to dashboard Cite

The effects of copper sprays on annual and polyetic progress of citrus canker, caused by Xanthomonas citri subsp. citri, in the presence of the Asian citrus leafminer (Phyllocnistis citrella), were evaluated in a study conducted in a commercial orchard in northwest Paraná state, Brazil, where citrus canker is endemic. Nonlinear monomolecular, logistic and Gompertz models were fitted to monthly disease incidence data (proportion of leaves with symptoms) for each treatment for three seasons. The logistic model provided the best estimate of disease progress for all years and treatments evaluated and logistic parameter estimates were used to describe polyetic disease dynamics. Although citrus canker incidence increased during each of the seasons studied, it decreased over the whole study period, more so in copper-treated trees than in water-sprayed controls. Copper treatment reduced disease incidence compared with controls in every year, especially 2004-2005, when incidence was ca. 10-fold higher in controls than in treated plots (estimated asymptote values 0AE82 and 0AE07, respectively). Copper treatment also reduced estimated initial disease incidence and epidemic growth rates every year.

show abstract

“…These strategies were initially based on eradication and exclusion of the pathogen (Leite Jr, 1990; Gimenes‐Fernandes et al. , 2000; Belasque Jr et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Currently, eradication programmes in Brazil have been maintained only in São Paulo state (Gottwald et al. , 2007; Belasque Jr et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

Annual and polyetic progression of citrus canker on trees protected with copper sprays

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Several methodologies of ACC eradication were used in SP following the first detection of the disease in 1957. Nonetheless, the protocol adopted from 1999 to 2009 was remarkably the most challenging and successful of all (Belasque et al, 2009). Although the efforts did not result in disease eradication, the programme maintained the incidence of new outbreaks at very low levels (≤0.20% of affected blocks) for nearly a decade following a continued increase due to the introduction of the CLM in 1996 (Prates et al, 1996;Chagas et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

A comprehensive analysis of the Asiatic citrus canker eradication programme in São Paulo state, Brazil, from 1999 to 2009

2016

View full text Add to dashboard Cite

Asiatic citrus canker (ACC), caused by Xanthomonas citri subsp. citri, has been controlled by exclusion and eradication measures in São Paulo state (SP), Brazil, since it was first detected in 1957. Several protocols of eradication have been used since then, but the protocol applied from 1999 to 2009 was the most successful and well documented of these. During that time, if the incidence of trees with symptoms in a citrus block was ≤0.5%, the infected trees and the symptomless trees within a 30 m radius were removed. However, if the incidence was >0.5%, the entire block was eliminated. Subsequently, inspections were carried out to monitor the affected blocks during quarantine. Although this protocol did not eliminate the disease from SP, it suppressed the incidence of affected blocks to very low annual levels (<0.20%) for a decade. Of over 5000 foci detected, 65.1% were eliminated by removing the block, either when disease was first detected (47.8%) or at a subsequent detection (17.3%), and 28.4% were eradicated by removing trees within a 30 m radius. The latter method was not an effective stand-alone measure for ACC eradication and the 0.5% threshold was the key factor in suppression of disease statewide. Currently, a re-emergence of ACC is occurring in SP. The information presented here will aid the establishment of protocols for the eradication of ACC in other citrus-growing areas with low incidence of the disease or at risk of pathogen introduction.

show abstract

“…The disease was first reported in Brazil in 1957, on plantations located in the municipality of Presidente Prudente, São Paulo state (BITANCOURT, 1957), probably from propagation material originating in Asia. Since then, exclusion and eradication measures have been adopted in an attempt to contain the introduction of the pathogen into new areas (BELASQUE JR. et al, 2009). This pathogen was first reported in Roraima in 2002 (NASCIMENTO et al, 2003), which led MAPA and SEAPA to sign two technical cooperation agreements in 2002 and 2004 to develop plant health defense services in the state (DOU, 2002;DOU, 2005).…”

Section: Citrus Canker (Xanthomonas Citri Subsp Citri)mentioning

confidence: 99%

“…Essa doença foi relatada pela primeira vez no Brasil em 1957, em plantios localizados no município de Presidente Prudente, SP (BITANCOURT, 1957), provavelmente de material propagativo trazido da Ásia. Desde então medidas de exclusão e erradicação foram adotadas na tentativa de conter a introdução do patógeno em novas áreas (BELASQUE JR. et al, 2009).…”

Section: Cancro Cítrico (Xanthomonas Citri Subsp Citri)unclassified

Threats and challenges in the control of quarantine pathogens in the state of Roraima Brazil

Halfeld-Vieira

Schurt²,

Barbosa³

et al. 2022

AGRO@MBIENTE ON-LINE

View full text Add to dashboard Cite

Plant diseases can negatively impact the production and sale of agricultural crops in a given region. Because it is a border state, Roraima is a potential entry route of quarantine pathogens that can threaten Brazilian agriculture. Constant health surveillance is an essential tool to mitigate the risks of the introduction and spread of important pathogens. In order to avoid or reduce the negative impacts caused by diseases resulting from the introduction or occurrence of a pathogen, a well-structured phytosanitary inspection program and technical guidelines for producers are necessary. The combined efforts of research institutions and state agencies aim to reduce production losses caused by diseases. Thus, the objective of this review is to address the main threats and challenges in controlling quarantine pests in the state of Roraima based on the experience of research and extension institutions in monitoring, pest detection and mitigation strategies. In this respect, contextualizing the events discussed may contribute to guiding plant defense measures, thus mitigating the risks of quarantine pathogen introduction and spread in Roraima.

show abstract

O sucesso da campanha de erradicação do cancro cítrico no estado de São Paulo, Brasil

Cited by 7 publications

References 5 publications

Annual and polyetic progression of citrus canker on trees protected with copper sprays

Annual and polyetic progression of citrus canker on trees protected with copper sprays

A comprehensive analysis of the Asiatic citrus canker eradication programme in São Paulo state, Brazil, from 1999 to 2009

Threats and challenges in the control of quarantine pathogens in the state of Roraima Brazil

Contact Info

Product

Resources

About