| Overview of the evaluation of Entoleuca mammata for bundles of whips and seedlings | |||||
| 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 bundles | 9,942 out of 10,000 bundles | 9,967 out of 10,000 bundles | 9,983 out of 10,000 bundles | 9,993 out of 10,000 bundles | 9,999.1 out of 10,000 bundles |
| Percentile of the distribution | 5% | 25% | Median | 75% | 95% |
| Proportion of infected bundles | 0.9 out of 10,000 bundles | 7 out of 10,000 bundles | 17 out of 10,000 bundles | 33 out of 10,000 bundles | 58 out of 10,000 bundles |
| Summary of the information used for the evaluation |
Possibility that the pest could become associated with the commodity Entoleuca mammata is present in the UK, although not widely distributed. Despite there is uncertainty on the host status of A. pseudoplatanus, other Acer spp. are reported as hosts of the pathogen. Mechanical wounds including pruning wounds are expected to be present and may represent infection courts. The hosts can be present either inside or in the surroundings of the nurseries. Altogether, this suggests that the association with the commodity may be possible. Measures taken against the pest and their efficacy General measures taken by the nurseries are effective against the pathogen. These measures include (a) the use of certified plant material; (b) inspections, surveillance, monitoring, sampling and laboratory testing; (c) the removal of infected plant material; and (d) application of pest control products. Interception records In the EUROPHYT/TRACES‐NT database, there are no records of notification of Acer plants for planting neither from the UK nor from other countries due to the presence of E. mammata between the years 1995 and December 2022 (EUROPHYT/TRACES‐NT, online). Shortcomings of current measures/procedures None observed.
Main uncertainties
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| Overview of the evaluation of Entoleuca mammata for bare root plants/trees and plants in pots up to 7 years old | |||||
| 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 | 9,927 out of 10,000 plants | 9,961 out of 10,000 plants | 9,979 out of 10,000 plants | 9,991 out of 10,000 plants | 9,998 out of 10,000 plants |
| Percentile of the distribution | 5% | 25% | Median | 75% | 95% |
| Proportion of infected plants | 2 out of 10,000 plants | 9 out of 10,000 plants | 21 out of 10,000 plants | 39 out of 10,000 plants | 73 out of 10,000 plants |
| Summary of the information used for the evaluation |
Possibility that the pest could become associated with the commodity Entoleuca mammata is present in the UK, although not widely distributed. Despite there is uncertainty on the host status of A. pseudoplatanus, other Acer spp. are reported as hosts of the pathogen. Mechanical wounds including pruning wounds are expected to be present and may represent infection courts. The hosts can be present either inside or in the surroundings of the nurseries. Altogether, this suggests that the association with the commodity may be possible. Measures taken against the pest and their efficacy General measures taken by the nurseries are effective against the pathogen. These measures include (a) the use of certified plant material; (b) inspections, surveillance, monitoring, sampling and laboratory testing; (c) the removal of infected plant material; and (d) application of pest control products. Interception records In the EUROPHYT/TRACES‐NT database, there are no records of notification of Acer plants for planting neither from the UK nor from other countries due to the presence of E. mammata between the years 1995 and December 2022 (EUROPHYT/TRACES‐NT, online). Shortcomings of current measures/procedures None observed.
Main uncertainties
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