| Overview of the evaluation of Bemisia tabaci (European populations) 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 | 9,967 out of 10,000 bundles | 9,981 out of 10,000 bundles | 9,989 out of 10,000 bundles | 9,995 out of 10,000 bundles | 9,999.2 out of 10,000 bundles |
| Percentile of the distribution | 5% | 25% | Median | 75% | 95% |
| Proportion of infested bundles | 0.8 out of 10,000 bundles | 5 out of 10,000 bundles | 11 out of 10,000 bundles | 19 out of 10,000 bundles | 33 out of 10,000 bundles |
| Summary of the information used for the evaluation |
Possibility that the pest could become associated with the commodity The pest is present in the UK, with few occurrences but continuously intercepted. The UK outbreaks of B. tabaci have been restricted to greenhouses. The pest is extremely polyphagous. Other traded plants present in the surroundings of the nursery could be a source of the pest. Polytunnels and glasshouses in the nurseries could act as a reservoir of the pest. The pest could go undetected during inspections. Measures taken against the pest and their efficacy General measures taken by the nurseries are effective against the pest. These measures include (a) inspections, surveillance, monitoring, sampling and laboratory testing; (b) hygiene measures; (c) application of pest control products and (d) removal of infested plant material. 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 B. tabaci between the years 1995 and December 2022 (EUROPHYT/TRACES‐NT, online). There were four interceptions of B. tabaci from the UK in 2007 and 2015 on other plants already planted likely produced under protected conditions (EUROPHYT, online). Shortcomings of current measures/procedures None.
Main uncertainties
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| Overview of the evaluation of Bemisia tabaci (European populations) for bare root plants/trees 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 | 9,951 out of 10,000 plants | 9,971 out of 10,000 plants | 9,984 out of 10,000 plants | 9,993 out of 10,000 plants | 9,999 out of 10,000 plants |
| Percentile of the distribution | 5% | 25% | Median | 75% | 95% |
| Proportion of infested plants | 1 out of 10,000 plants | 7 out of 10,000 plants | 16 out of 10,000 plants | 29 out of 10,000 plants | 49 out of 10,000 plants |
| Summary of the information used for the evaluation |
Possibility that the pest could become associated with the commodity The pest is present in the UK, with few occurrences but continuously intercepted. The UK outbreaks of B. tabaci have been restricted to greenhouses. The pest is extremely polyphagous. Other traded plants present in the surroundings of the nursery could be a source of the pest. Polytunnels and glasshouses in the nurseries could act as a reservoir of the pest. The pest could go undetected during inspections. Measures taken against the pest and their efficacy General measures taken by the nurseries are effective against the pest. These measures include (a) inspections, surveillance, monitoring, sampling and laboratory testing; (b) hygiene measures; (c) application of pest control products and (d) removal of infested plant material. 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 B. tabaci between the years 1995 and December 2022 (EUROPHYT/TRACES‐NT, online). There were four interceptions of B. tabaci from the UK in 2007 and 2015 on other plants already planted likely produced under protected conditions (EUROPHYT, online). Shortcomings of current measures/procedures None.
Main uncertainties
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| Overview of the evaluation of Bemisia tabaci (European populations) for plants in pots up to 15 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 | 9,956 out of 10,000 plants | 9,974 out of 10,000 plants | 9,988 out of 10,000 plants | 9,997 out of 10,000 plants |
| Percentile of the distribution | 5% | 25% | Median | 75% | 95% |
| Proportion of infested plants | 3 out of 10,000 plants | 12 out of 10,000 plants | 26 out of 10,000 plants | 44 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 The pest is present in the UK, with few occurrences but continuously intercepted. The UK outbreaks of B. tabaci have been restricted to greenhouses. The pest is extremely polyphagous. Other traded plants present in the surroundings of the nursery could be a source of the pest. Polytunnels and glasshouses in the nurseries could act as a reservoir of the pest. The pest could go undetected during inspections. Measures taken against the pest and their efficacy General measures taken by the nurseries are effective against the pest. These measures include (a) inspections, surveillance, monitoring, sampling and laboratory testing; (b) hygiene measures; (c) application of pest control products and (d) removal of infested plant material. 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 B. tabaci between the years 1995 and December 2022 (EUROPHYT/TRACES‐NT, online). There were four interceptions of B. tabaci from the UK in 2007 and 2015 on other plants already planted likely produced under protected conditions (EUROPHYT, online). Shortcomings of current measures/procedures None.
Main uncertainties
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