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. 2021 Jan 21;19(1):e06353. doi: 10.2903/j.efsa.2021.6353
Number Risk mitigation measure Effect on the pest Evaluation and uncertainties on bare rooted plants Evaluation and uncertainties on liners
1 Characteristics of the production field Yes The characteristics of the production field should not affect significantly the pathogen in open field.The use of commercial media always new in sack containers should prevent the entry of pathogen inoculum with the growing medium. However, the medium may become contaminated during production as a result of inoculum dispersal and incorporation of infected plant tissues.The net of the net house is designed for shading and it is not expected to prevent or reduce the entry of pathogen inoculum.Uncertainties:– There is uncertainty whether fallen leaves are periodically removed.– There is uncertainty on the level of viability of the inoculum in the soil (both the persistence in the soil and the ability to fruit). The use of commercial media always new should prevent the entry of pathogen inoculum with the growing medium. However, the medium may become contaminated during production as a result of inoculum dispersal and incorporation of infected plant tissues.Irrigation by sprinklers may enhance splash dispersal of inoculum leading to new infections.The net of the net house is designed for shading and it is not expected to prevent or reduce the entry of pathogen inoculum.Uncertainties:– There is uncertainty whether fallen leaves are periodically removed.– There is uncertainty on the level of viability of the inoculum in the soil (both the persistence in the soil and the ability to fruit).
2 Soil treatment Yes, for bare rooted plants Soil solarisation may reduce the inoculum of N. dimidiatum present in plant debris in the soil.Uncertainties:– The level of reduction of inoculum in the soil as a result of solarisation is unknown. Not applicable
3 Rotation of the growing fields No Not applicable Not applicable
4 Insecticide treatment No Not applicable Not applicable
5 Fungicide treatment Yes The Panel assumes that fungicide treatment with Myclobutanil or other appropriate fungicides occur in the case of any early signs of infection. Therefore, if plants are symptomless fungicide treatment will not be carried out.Post‐harvest treatment is targeting infection from root pathogens and is not expected to eradicate or to kill the pathogen if present in the plant.Uncertainties:– The level of effectiveness of the fungicides against the pathogen is unknown. The Panel assumes that fungicide treatment with Myclobutanil or other appropriate fungicides occur in the case of any early signs of infection. Therefore, if plants are symptomless, fungicide treatment will not be carried out.Uncertainties:– The level of effectiveness of the fungicides against the pathogen is unknown.
6 Nematicide treatment No Not applicable Not applicable
7 Treatment against weeds No Not applicable Not applicable
8 Plant treatment before export Yes Leaves removal could reduce the probability of carrying the pathogen. However, the pathogen may be mostly associated with other plant tissues than leaves.Uncertainties:– The level of the association of the pathogen with other plant tissues.– There is uncertainty regarding the association of the pathogen with leaves in F. carica. Leaves removal and cleaning of the plant debris could reduce the probability of carrying the pathogen. However, the pathogen may be mostly associated with other plant tissues than leaves.Uncertainties:– The level of the association of the pathogen with other plant tissues.– There is uncertainty regarding the association of the pathogen with leaves in F. carica.
9 Sampling and testing No Not applicable Not applicable
10 Inspections during the production Yes The inspections during the production should allow a prompt detection of any visible symptoms. However, low level of infections might be overlooked. Asymptomatic plants will go undetected.Uncertainties:– No uncertainties The inspections during the production should allow a prompt detection of any visible symptoms. However, low level of infections might be overlooked. Asymptomatic plants will go undetected.Uncertainties:– No uncertainties
11 Inspections before export Yes The inspections before export should allow a prompt detection of any visible symptoms of any disease. However, low level of infections might be overlooked. Asymptomatic plants will go undetected.Uncertainties:– No uncertainties The inspections before export should allow a prompt detection of any visible symptoms of any disease. However, low level of infections might be overlooked. Symptoms of root rot in roots cannot be observed. Asymptomatic plants will go undetected.Uncertainties:– No uncertainties
12 Surveillance and monitoring Yes Surveillance in the surrounding area is not implemented; however, N. dimidiatum is present in Israel.Uncertainties:– There is no information on the presence and density of N. dimidiatum in the surrounding areas. Surveillance in the surrounding area is not implemented; however, N. dimidiatum is present in Israel.Uncertainties:– There is no information on the presence and density of N. dimidiatum in the surrounding areas.