Título:	A case study on the risk of spread of citrus huanglongbing in family farming in São Paulo and Minas Gerais States, Brazil.
Autor:	SULZBACH, M. FERREIRA, E. A. AZEVEDO, F. A. de BASSANEZI, R. B. SCHWARZ, S. F. OLIVEIRA, R. P. de BARBOSA, F. F. L. GIRARDI, E. A.
Afiliación:	MANUELA SULZBACH, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; ESTER ALICE FERREIRA, EMPRESA DE PESQUISA AGROPECUÁRIA DE MINAS GERAIS; FERNANDO ALVES DE AZEVEDO, INSTITUTO AGRONÔMICO; RENATO BEOZZO BASSANEZI, FUNDO DE DEFESA DA CITRICULTURA; SÉRGIO FRANCISCO SCHWARZ, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; ROBERTO PEDROSO DE OLIVEIRA, CPACT; FRANCISCO FERRAZ LARANJEIRA BARBOSA, CNPMF; EDUARDO AUGUSTO GIRARDI, CNPMF.
Año:	2025
Referencia:	Journal of Citrus Pathology, v. 12, n. 1, p. 2313-5131, 2025.
Descripción:	Abstract: Since its detection in Brazil in 2004, huanglongbin g (HLB) has caused expressive damage to the citrus belt in São Paulo, Minas Gerais and Paraná states. The disease incidence is higher in small groves mainly related to family farming. A risk analysis was performed in citrus regions in São Paulo and Minas Gerais with the objective of identifying the main factors associated with the introduction and spread of HLB in this farm profile. A structured questionnaire was applied comprising 27 closed questions with binary answers (0 or 1 as no or yes ) to 39 citrus growers along 12 municipalities. The regions were selected according to the HLB incidence and relevance of citrus family farming, and farms were assessed by non-probabilistic and convenience sampling. The Analytic Hierarchy Process (AHP) was used to prioritize and weigh specific criteria related to the factors evaluated. Based on the answers, each farm was classified into four risk classes: low (0 to 0.25), intermediate (0.26 to 0.50), high (0.51 to 0.75) and very high (0.76 to 1). The introduction risks into the sampled farms were very high due to the disease occurrence in neighboring areas. However, factors that most contributed to the spread risk within groves were different between the two regions evaluated. In South MG, lack of basic knowledge about HLB pathosystem and low use of control measures were major issues, whereas in East SP the spread was more related to grove age, productivity and density, and absence of area-wide management.
Thesagro:	Citrus Sinensis Praga Quarentenária Sistema de Produção
NAL Thesaurus:	Candidatus Liberibacter Diaphorina citri Decision support systems Information dissemination
Palabras clave:	Production system Quarantine pest
DOI:	https://doi.org/10.5070/C4.41454
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CPACT)