Floribusiness High risk host plants must be tested on Xylella

    High risk host plants must be tested on Xylella


    Six species marked as high risk host plants of Xylella, must be tested on European nurseries before 1 March.

    According to Dutch phytosanitary service NVWA the testing obligation applies in all EU member states for: Coffea, Lavandula dentata, Nerium oleander, Olea europaea, Polygala myrtifolia and Prunus dulcis.

    The obligation only applies to nurseries of these species. Trading companies don’t have to test, except if they keep plants of the species in store for selling next season.

    Inspection services in every EU member state will visit nurseries growing these species. They take samples from every species for analyzing. When Xylella is not found, the plant material may be sold on the EU market.

    Tested every year

    From now on the six species must be tested every year on Xylella. According to the NVWA Dutch nurseries have to pay for all the costs.

    Regarding earlier outbreaks of Xylella in southern Europe, the six species showed a higher risk of becoming infected than other host plants of the quarantine bacterium. Due to the testing obligation, the European Commission wants to further reduce the risk of spreading. The passport obligation remains the same.

    Last year the British government insisted already on stricter EU measures. DEFRA Minister Michael Gove mentioned those six species as the biggest threat to the United Kingdom.

    Picture: EPPO/Donato Boscia, Istituto per la Protezione Sostenibile delle Piante


    Arno Engels
    Since 2000 Arno Engels has been editor of De Boomkwekerij, Dutch magazine for hardy nursery stock. Since 2018 he is also Floribusiness editor.

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