Overview of the evaluation of E. mammata for graftwood/budwood
Rating of the likelihood of pest freedom	Pest free with few exceptional cases (based on the median)
Percentile of the distribution	5%	25%	Median	75%	95%
Proportion of pest‐free bundles	9974 out of 10,000 bundles	9985 out of 10,000 bundles	9991 out of 10,000 bundles	9995 out of 10,000 bundles	9998.8 out of 10,000 bundles
Percentile of the distribution	5%	25%	Median	75%	95%
Proportion of infected bundles	1.2 out of 10,000 bundles	5 out of 10,000 bundles	9 out of 10,000 bundles	15 out of 10,000 bundles	26 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. Betula pendula and B. pubescens are reported as hosts of the pathogen. Wounds could be present on twigs/branches taken for graftwood/budwood and may represent infection courts. The hosts can be present either inside or in the surroundings of the nurseries. Altogether, this suggests that 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) the removal of infected plant material and (c) application of plant protection products. Interception records In the EUROPHYT/TRACES‐NT database there are no records of notification of Betula plants for planting neither from the UK nor from other countries due to the presence of E. mammata between the years 1995 and January 2024 (EUROPHYT, 2024; TRACES‐NT, 2024). Shortcomings of current measures/procedures None observed Main uncertainties – The level of susceptibility of Betula spp. to the pathogen – Whether symptoms on Betula spp. are recognisable and may be promptly detected – The presence/abundance of the pathogen in the area where the nurseries are located – Effect of fungicide treatments against the pathogen

Overview of the evaluation of E. mammata for bare root 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/bundles	9927 out of 10,000 plants/bundles	9961 out of 10,000 plants/bundles	9979 out of 10,000 plants/bundles	9991 out of 10,000 plants/bundles	9998 out of 10,000 plants/bundles
Percentile of the distribution	5%	25%	Median	75%	95%
Proportion of infected plants/bundles	2 out of 10,000 plants/bundles	9 out of 10,000 plants/bundles	21 out of 10,000 plants/bundles	39 out of 10,000 plants/bundles	73 out of 10,000 plants/bundles
Summary of the information used for the evaluation	Possibility that the pest could become associated with the commodity Because of the similarity of the commodities, the expected susceptibility to the pathogen and the production systems, and of the nurseries and surroundings, the Panel validated the scenarios from the previous Scientific opinion on Acer platanoides from the UK (EFSA PLH Panel, 2023a) for Betula pendula and B. pubescens. As a result of this evaluation, the same values as for Acer platanoides were considered to be applicable for B. pendula and B. pubescens. Entoleuca mammata is present in the UK, although not widely distributed. Betula pendula and B. pubescens 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 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) the removal of infected plant material and (c) application of plant protection products.
	Interception records In the EUROPHYT/TRACES‐NT database there are no records of notification of Betula plants for planting neither from the UK nor from other countries due to the presence of E. mammata between the years 1995 and January 2024 (EUROPHYT, 2024; TRACES‐NT, 2024). Shortcomings of current measures/procedures None observed Main uncertainties – The level of susceptibility of Betula spp. to the pathogen – Whether symptoms on Betula spp. are recognisable and may be promptly detected – The presence/abundance of the pathogen in the area where the nurseries are located – Effect of fungicide treatments against the pathogen

Overview of the evaluation of E. mammata for plants in pots
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/bundles	9927 out of 10,000 plants/bundles	9961 out of 10,000 plants/bundles	9979 out of 10,000 plants/bundles	9991 out of 10,000 plants/bundles	9998 out of 10,000 plants/bundles
Percentile of the distribution	5%	25%	Median	75%	95%
Proportion of infected plants/bundles	2 out of 10,000 plants/bundles	9 out of 10,000 plants/bundles	21 out of 10,000 plants/bundles	39 out of 10,000 plants/bundles	73 out of 10,000 plants/bundles
Summary of the information used for the evaluation	Possibility that the pest could become associated with the commodity Because of the similarity of the commodities, the expected susceptibility to the pathogen and the production systems, and of the nurseries and surroundings, the Panel validated the scenarios from the previous Scientific opinion on Acer platanoides from the UK (EFSA PLH Panel, 2023a) for B. pendula and B. pubescens. As a result of this evaluation, the same values as for A. platanoides were considered to be applicable for B. pendula and B. pubescens. E. mammata is present in the UK, although not widely distributed. B. pendula and B. pubescens 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 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) the removal of infected plant material and (c) application of plant protection products. Interception records In the EUROPHYT/TRACES‐NT database there are no records of notification of Betula plants for planting neither from the UK nor from other countries due to the presence of E. mammata between the years 1995 and January 2024 (EUROPHYT, 2024; TRACES‐NT, 2024). Shortcomings of current measures/procedures None observed Main uncertainties – The level of susceptibility of Betula spp. to the pathogen – Whether symptoms on Betula spp. are recognisable and may be promptly detected – The presence/abundance of the pathogen in the area where the nurseries are located – Effect of fungicide treatments against the pathogen

Overview of the evaluation of E. mammata for specimen trees
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	9889 out of 10,000 plants	9937 out of 10,000 plants	9965 out of 10,000 plants	9985 out of 10,000 plants	9997 out of 10,000 plants
Percentile of the distribution	5%	25%	Median	75%	95%
Proportion of infected plants	3 out of 10,000 plants	15 out of 10,000 plants	35 out of 10,000 plants	63 out of 10,000 plants	111 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. Betula pendula and B. pubescens are reported as hosts of the pathogen. Mechanical wounds including pruning wounds are expected to be present in those specimen trees and may represent infection courts. The hosts can be present either inside or in the surroundings of the nurseries. Altogether, this suggests that 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) the removal of infected plant material and (c) application of plant protection products. Interception records In the EUROPHYT/TRACES‐NT database there are no records of notification of Betula plants for planting neither from the UK nor from other countries due to the presence of E. mammata between the years 1995 and January 2024 (EUROPHYT, 2024; TRACES‐NT, 2024). Shortcomings of current measures/procedures None observed Main uncertainties – The level of susceptibility of Betula spp. to the pathogen – Whether symptoms on Betula spp. are recognisable and may be promptly detected – The presence/abundance of the pathogen in the area where the nurseries are located – Effect of fungicide treatments against the pathogen

Note: For more details, see relevant pest data sheet on Entoleuca mammata (Section A.1 in Appendix A).