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. 2021 Jan 21;19(1):e06353. doi: 10.2903/j.efsa.2021.6353
Overview of the evaluation of Colletotrichum siamense for bare rooted plants
Rating of the likelihood of pest freedom Pest free with some exceptional cases (based on the Median)
Percentile of the distribution 5% 25% Median 75% 95%
Proportion of pest‐free plants 9,932 out of 10,000 plants 9,956 out of 10,000 plants 9,973 out of 10,000 plants 9,986 out of 10,000 plants 9,994 out of 10,000 plants
Percentile of the distribution 5% 25% Median 75% 95%
Proportion of infested plants 6 out of 10,000 plants 14 out of 10,000 plants 27 out of 10,000 plants 44 out of 10,000 plants 68 out of 10,000 plants
Summary of the information used for the evaluation Possibility that the pest could become associated with the commodityThe pathogen has been reported from Israel and can be present around the nursery because suitable host plants may be present. The pathogen may enter into the nursery and spread within the nursery by means of airborne and water splashed spores. Colletotrichum spp. are known to be associated with nursery plants.Measures taken against the pest and their efficacyThe measures taken against the pest (fungicide treatments and inspections) could be effective, however symptoms have never been described on F. carica and this may hamper a prompt detection and the application of fungicides. Moreover, fungicide treatments are only applied if symptoms are observed.Interception recordsIn the EUROPHYT database, there are no records of notification of Fcarica plants for planting from Israel due to the presence of C. siamense between the years 1995 and November 2019 (EUROPHYT, online).Shortcomings of current measures/proceduresThe application of fungicides is based on symptoms. However, symptoms are not expressed in case of latent infections as observed in other plants species. The symptoms on F. carica have not been described yet. All these aspects may lead to shortcomings in the control.Main uncertaintiesThe level of susceptibility of F. carica to the pathogen is the main uncertainty together with the lack of information on the density of the pathogen in the surrounding areas.
Overview of the evaluation of Colletotrichum siamense for liners
Rating of the likelihood of pest freedom Extremely frequently pest free (based on the Median)
Percentile of the distribution 5% 25% Median 75% 95%
Proportion of pest‐free plants 9,834 out of 10,000 plants 9,890 out of 10,000 plants 9,930 out of 10,000 plants 9,960 out of 10,000 plants 9,984 out of 10,000 plants
Percentile of the distribution 5% 25% Median 75% 95%
Proportion of infested plants 16 out of 10,000 plants 40 out of 10,000 plants 70 out of 10,000 plants 110 out of 10,000 plants 166 out of 10,000 plants
Summary of the information used for the evaluation Possibility that the pest could become associated with the commodityThe pathogen has been reported from Israel and can be present around the nursery because suitable host plants may be present. The pathogen may entry into the nursery and spread within the nursery by means of airborne and water splashed spores. Colletotrichum spp. are known to be associated with nursery plants. Sprinkling of liners could favour infection and spread of the pathogen and the soil could become contaminated by infected leaves.Measures taken against the pest and their efficacyThe measures taken against the pest (fungicide treatments and inspections) could be effective, however symptoms have never been described on F. carica and this may hamper a prompt detection and the application of fungicides. Moreover, fungicide treatments are only applied if symptoms are observed.Interception recordsIn the EUROPHYT database, there are no records of notification of F. carica plants for planting from Israel due to the presence of C. siamense between the years 1995 and November 2019 (EUROPHYT, online).Shortcomings of current measures/proceduresThe application of fungicides is based on symptoms. However, symptoms are not expressed in case of latent infections as observed in other plants species. The symptoms on F. carica have not been described yet. All these aspects may lead to shortcomings in the control.Main uncertaintiesThe level of susceptibility of F. carica to the pathogen is the main uncertainty together with the lack of information on the density of the pathogen in the surrounding areas.