The European Food Safety Authority (EFSA) has added 37 new species to the host plant list of Xylella fastidiosa. A total of 595 species of trees and plants are now susceptible to the bacterial disease. Most of the new species have been found in France, Italy, Portugal, Spain, United States and Iran. According to EFSA, the plants had become infected with Xylella in a natural way. These include wild species, as well as species grown and traded such as Erigeron (picture), Helichrysum stoechas, Pistacia vera and Diospyros kaki. In 343 of the total 595 species of host plants, infection by at least two detection methods has been identified, under natural and experimental conditions. In the following list all the host plants have been mentioned in relation to the subspecies of Xylella.

Host plant found to be susceptible to Xylella fastidiosa subsp. fastidiosa
Cistus monspeliensis L.
Erysimum
Juglans regia L.
Streptocarpus
Vitis vinifera L.
Host plants found to be susceptible to Xylella fastidiosa subsp. multiplex
Acacia dealbata Link
Acacia saligna (Labill.) Wendl
Acer pseudoplatanus L.
Anthyllis hermanniae L.
Artemisia arborescens L.
Asparagus acutifolius L.
Calicotome spinosa (L.) Link
Calicotome villosa (Poiret) Link
Cercis siliquastrum L.
Cistus creticus L.
Cistus monspeliensis L.
Ref. Ares(2019)2560613 – 11/04/2019
Cistus salviifolius L.
Convolvulus cneorum L.
Coprosma repens A. Rich.
Coronilla glauca L.
Coronilla valentina L.
Cytisus scoparius (L.) Link
Cytisus villosus Pourr.
Elaeagnus angustifolia L.
Euryops chrysanthemoides (DC.) B.Nord.
Euryops pectinatus (L.) Cass.
Ficus carica L.
Fraxinus angustifolia Vahl
Genista x spachiana (syn. Cytisus racemosus Broom)
Genista corsica (Loisel.) DC.
Genista ephedroides DC.
Grevillea juniperina R. Br.
Hebe
Helichrysum italicum (Roth) G. Don
Lavandula angustifolia Mill.
Lavandula stoechas L.
Lavandula x allardii (syn. Lavandula x heterophylla)
Lavandula x intermedia
Lonicera japonica Thunb.
Medicago sativa L.
Metrosideros excelsa Sol. ex Gaertn.
Myrtus communis L.
Olea europaea L.
Pelargonium graveolens L’Hér
Phagnalon saxatile (L.) Cass.
Prunus armeniaca L.
Prunus cerasifera Ehrh.
Prunus domestica L.
Prunus cerasus
Quercus suber L.
Rhamnus alaternus L.
Rosa canina L.
Spartium junceum L.
Ulex europaeus L.
Veronica elliptica L.
Westringia fruticosa (Willd.) Druce
Host plants found to be susceptible to Xylella fastidiosa subsp. pauca
Acacia saligna (Labill.) Wendl
Amaranthus retroflexus L.
Asparagus acutifolius L.
Catharanthus
Chenopodium album L.
Cistus creticus L.
Dimorphoteca fruticosa (L.)
Dodonaea viscosa Jacq.
Eremophila maculata F. Muell.
Erigeron sumatrensis Retz.
Erigeron bonariensis L.
Euphorbia chamaesyce L.
Euphorbia terracina L.
Grevillea juniperina L.
Heliotropium europaeum L.
Laurus nobilis L.
Lavandula angustifolia Mill.
Lavandula stoechas L.
Myrtus communis L.
Myoporum insulare R. Br.
Olea europaea L.
Pelargonium x fragrans
Phillyrea latifolia L.
Rhamnus alaternus L.
Spartium junceum L.
Vinca
Westringia fruticosa (Willd.) Druce
Westringia glabra L.
Host plants found to be susceptible to Xylella fastidiosa – irrespective of the subspecies –
Calicotome spinosa (L.) Link
Cistus albidus L.
Coffea
Genista lucida Cambess.
Helicrysum stoechas (L.) Moench
Lavandula dentata L.
Lavandula x chaytorae
Nerium oleander L.
Polygala myrtifolia L.
Prunus avium L.
Prunus dulcis (Mill.) D.A. Webb
Rosmarinus officinalis L.
Teucrium capitatum L.
Ulex minor Roth*
Vinca*