Análise do risco fitossanitário da introdução do nematoide Ditylenchus destructor Torne no Brasil por produtos vegetais de importação autorizada
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2015-12-11
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Universidade Federal de Viçosa
Resumo
Os objetivos deste trabalho foram determinar, entre os artigos regulamentados já com autorização fitossanitária de importação para o Brasil ainda não submetidos à análise de risco de pragas (ARP), as possíveis vias de ingresso do nematoide parasita de vegetais Ditylenchus destructor Thorne, 1945, praga quarentenária ausente no Brasil; avaliar o risco fitossanitário da introdução de D. destructor a plantas cultivadas na agricultura, horticultura e silvicultura, plantas não cultivadas, flora selvagem, habitats e ecossistemas no Brasil por esses produtos importados, a partir de avaliações semiquantitativas das suas probabilidades de entrada e estabelecimento em território nacional e dos seus potenciais de disseminação e de causar danos econômicos no Brasil; e propor medidas fitossanitárias a serem estabelecidas em normas oficiais do Ministério da Agricultura, Pecuária e Abastecimento (MAPA) para mitigar para um nível aceitável o risco fitossanitário associado à introdução e disseminação de D. destructor pelas vias de ingresso no Brasil para as quais o risco fitossanitário fosse julgado inaceitável. A ARP foi conduzida por meio do esquema de apoio à decisão para ARP da Norma de Medidas Fitossanitárias n.o 5/3 (5), da Organização Europeia para Proteção de Plantas (EPPO), executada no software CAPRA (“Computer Assisted Pest Risk Analysis”). Os produtos vegetais de importação autorizada (PVIA) que são possíveis vias de ingresso para D. destructor foram determinados, filtrando-se os registros da base de dados de PVIA do MAPA a partir dos registros de espécies vegetais hospedeiras do nematoide, de países que têm registros de sua ocorrência e das partes vegetais para as quais há registros de que o nematoide possa se abrigar em alguma fase do seu ciclo de vida. As probabilidades semiquantitativas de entrada e de estabelecimento e os potenciais semiquantitativos de disseminação, de impacto econômico e de risco final da praga em cada via de ingresso, bem como os valores de suas incertezas, foram compostos a partir das respostas dadas às questões individuais do esquema da EPPO no CAPRA, utilizando a modelagem de decisão com atributos múltiplos por regras expressas em matrizes, contida no próprio software CAPRA e executada dentro do software livre de ambiente de modelagem “GeNIe”. O risco fitossanitário final de Ditylenchus destructor nas diversas vias de ingresso avaliadas foi considerado baixo, com incerteza média. Foi, portanto, considerado aceitável, não tendo sido necessária a adoção de medidas fitossanitárias adicionais para mitigar esse risco, além das medidas fitossanitárias gerais atualmente em vigor.
The objectives of this study were to determine, among the regulated articles already with phytosanitary import authorization to Brazil not yet submitted to pest risk analysis (PRA), the possible pathways to the plant parasitic nematode Ditylenchus destructor Thorne, 1945, absent quarantine pest in Brazil; to assess the phytosanitary risk of introducing D. destructor to cultivated plants in agriculture, horticulture and forestry, uncultivated plants, wild flora, habitats and ecosystems in Brasil by these imported products, from semiquantitative assessements of their likelihoods of entry and establishment in the country, and its potential to spread and cause economic damage in Brazil; and to propose phytosanitary measures to be established in official regulations of the Ministry of Agriculture, Livestock and Food Supply (MAPA) to mitigate to an acceptable level the phytosanitary risk associated with the introduction and spread of D. destructor by the pathways into Brazil for which the phytosanitary risk was deemed unacceptable. The PRA was conducted through the decision support scheme to PRA of the Phytosanitary Measures Standard No. 5/3 (5), of the European Plant Protection Organization (EPPO), performed in the CAPRA software ("Computer Assisted Pest Risk Analysis"). The plant products with authorized import (PVIA) that are possible pathways to D. destructor were determined by filtering the MAPA’s PVIA database records with the records of the nematode’s host plant species, countries that have records of its occurrence, and plant parts to which there are records that the nematode can take shelter at some stage of its life cycle. Semiquantitative likelihoods of entry and establishment, and semiquantitative potentials of spread, economic impact and final risk of the pest on each pathway, as well as the values of their uncertainties, were composed from the answers to individual questions of EPPO scheme in CAPRA, using the decision modeling with multiple attributes by rules expressed in matrices contained in the CAPRA software itself and executed in the free software of modeling environment "GENIE". The final phytosanitary risk of Ditylenchus destructor in the different assessed pathways was considered low, with medium uncertainty. It was therefore considered acceptable, and it was not necessary to adopt additional phytosanitary measures to mitigate this risk, beyond to the general phytosanitary measures currently in effect.
The objectives of this study were to determine, among the regulated articles already with phytosanitary import authorization to Brazil not yet submitted to pest risk analysis (PRA), the possible pathways to the plant parasitic nematode Ditylenchus destructor Thorne, 1945, absent quarantine pest in Brazil; to assess the phytosanitary risk of introducing D. destructor to cultivated plants in agriculture, horticulture and forestry, uncultivated plants, wild flora, habitats and ecosystems in Brasil by these imported products, from semiquantitative assessements of their likelihoods of entry and establishment in the country, and its potential to spread and cause economic damage in Brazil; and to propose phytosanitary measures to be established in official regulations of the Ministry of Agriculture, Livestock and Food Supply (MAPA) to mitigate to an acceptable level the phytosanitary risk associated with the introduction and spread of D. destructor by the pathways into Brazil for which the phytosanitary risk was deemed unacceptable. The PRA was conducted through the decision support scheme to PRA of the Phytosanitary Measures Standard No. 5/3 (5), of the European Plant Protection Organization (EPPO), performed in the CAPRA software ("Computer Assisted Pest Risk Analysis"). The plant products with authorized import (PVIA) that are possible pathways to D. destructor were determined by filtering the MAPA’s PVIA database records with the records of the nematode’s host plant species, countries that have records of its occurrence, and plant parts to which there are records that the nematode can take shelter at some stage of its life cycle. Semiquantitative likelihoods of entry and establishment, and semiquantitative potentials of spread, economic impact and final risk of the pest on each pathway, as well as the values of their uncertainties, were composed from the answers to individual questions of EPPO scheme in CAPRA, using the decision modeling with multiple attributes by rules expressed in matrices contained in the CAPRA software itself and executed in the free software of modeling environment "GENIE". The final phytosanitary risk of Ditylenchus destructor in the different assessed pathways was considered low, with medium uncertainty. It was therefore considered acceptable, and it was not necessary to adopt additional phytosanitary measures to mitigate this risk, beyond to the general phytosanitary measures currently in effect.
Descrição
Palavras-chave
Ditylenchus destructor Thorne - Avaliação de riscos, Nematoda em plantas - Controle, Plantas - Parasito
Citação
VALENTE, Clidenor Mendes Wolney. Análise do risco fitossanitário da introdução do nematoide Ditylenchus destructor Torne no Brasil por produtos vegetais de importação autorizada. 2015. 145f. Dissertação (Mestrado em Defesa Sanitária Vegetal) - Universidade Federal de Viçosa, Viçosa. 2015.