Phytophthora ramorum - The Food and Environment Research ...
Phytophthora ramorum - The Food and Environment Research ...
Phytophthora ramorum - The Food and Environment Research ...
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4.2 <strong>Phytophthora</strong> kernoviae<br />
Like P. <strong>ramorum</strong>, the principal host of P. kernoviae is Rhododendron, mainly R. ponticum although<br />
laboratory tests indicate that Vaccinium myrtillus is also highly susceptible. In addition to English oak<br />
<strong>and</strong> beech, a number of other native tree species are also known to be susceptible to P. kernoviae.<br />
Table 2 provides a listing of recorded natural hosts of P. kernoviae. Up-to-date host listings can be<br />
found at: www.defra.gov.uk/planth/kernovii/kernhost.pdf. Particular attention should be paid to<br />
these when monitoring <strong>and</strong> undertaking inspections.<br />
Table 2 : Recorded natural hosts of <strong>Phytophthora</strong> kernoviae (January 2008)<br />
Family Host Type of infection<br />
Annonaceae Annona cherimola Shoot <strong>and</strong> fruit necrosis<br />
Aquifoliaceae Ilex aquifolium Leaf infection<br />
Araliaceae Hedera helix Stem infection<br />
Ericaceae Pieris formosa Leaf infection<br />
Pieris japonica<br />
Leaf infection<br />
Rhododendron spp.<br />
Shoot die-back <strong>and</strong> leaf infection<br />
Vaccinium myrtillus<br />
Leaf infection <strong>and</strong> stem lesions<br />
Fagaceae Fagus sylvatica Bleeding canker<br />
Quercus ilex<br />
Leaf necrosis<br />
Quercus robur<br />
Bleeding canker<br />
Magnoliaceae Magnolia amoena Leaf infection<br />
Liriodendron tulipifera<br />
Bleeding canker <strong>and</strong> leaf infection<br />
Magnolia brooklynensis<br />
Leaf infection<br />
Magnolia cylindrica<br />
Leaf spot <strong>and</strong> bud blast<br />
Magnolia delavayi<br />
Leaf blight<br />
Magnolia Gresham hybrid ‘Joe McDaniel’ Leaf infection<br />
Magnolia Gresham hybrid ‘Sayonara’ Leaf infection<br />
Magnolia kobus DC<br />
Bud base death<br />
Magnolia Leonard Messel<br />
Leaf spot <strong>and</strong> bud blast<br />
Magnolia liliflora<br />
Leaf spot<br />
Magnolia mollicomata<br />
Leaf infection <strong>and</strong> stem tip die-back<br />
Magnolia salicifolia<br />
Leaf infection<br />
Magnolia sargentiana<br />
Leaf infection<br />
Magnolia x soulangeana<br />
Leaf spot<br />
Magnolia sprengeri<br />
Leaf infection<br />
Magnolia stellata<br />
Leaf infection<br />
Magnolia wilsonii<br />
Foliage necrosis <strong>and</strong> blossom blight<br />
Michelia doltsopa<br />
Leaf infection<br />
Podocarpaceae Podocarpus salignus Shoot tip wilt <strong>and</strong> foliar blight<br />
Proteaceae Gevuina avellana Leaf infection<br />
Rosaceae Prunus laurocerasus Leaf <strong>and</strong> stem die-back<br />
Winteraceae Drimys winteri Foliage necrosis<br />
8
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