| Acer pseudoplatanus |
Sycamore |
Phytophthora ramorum exposed lesion on Sycamore (Acer pseudoplatanus). Note: the white mycelium in the top 25% of the lesion is an Armillaria sp., following the P. ramorum lesion closely. |
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| Acer pseudoplatanus |
Sycamore |
Phytophthora ramorum exposed lesion on Sycamore (Acer pseudoplatanus) at close range showing the dead live junction.
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| Aesculus sp. |
Horse Chestnut |
Stem cankers and inner bark necrosis on root flares of a Horse chestnut, caused by P. ramorum. |
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| Camellia sp. |
Camellia |
Shoot tip necrosis of Camellia caused by P. ramorum. |
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| Castanea sativa |
Sweet chestnut |
Leaf necrosis on sweet chestnut infected with P. ramorum (late season last flush foliage on young branches). |
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| Castanea sativa |
Sweet Chestnut |
Symptoms on infected under canopy leaves on epicormic shoots of sweet chestnut.
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| Castanopsis orthacantha |
Castanopsis |
Drip tip and mid-rib necrosis caused by P. ramorum on Castanopsis orthacantha
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| Fagus sylvatica |
Beech |
Bleeding Beech in Holland |
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| Fagus sylvatica |
Beech |
Exposed P. ramorum lesions on beech (Fagus sylvatica).
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| Fagus sylvatica |
Beech |
Close-up of bleeding girdling Beech tree in Holland |
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| Fraxinus sp. |
Ash |
Foliage necrosis on Ash. (Note: water soaked lesions on leaf tips)
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| Michelia doltsopa |
Michelia |
Drip tip necrosis on Michelia doltsopa.
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| Michelia doltsopa |
Michelia |
Drip tip leaf necrosis on Michelia doltsopa.
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| Nothofagus obliqua |
Beech |
Stem canker as a results of inner bark death casued by P. ramorum on Nothofagus obliqua (Roblé) |
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| Nothofagus sp. |
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Inner bark necrosis contrasted with healthy bark (white) on Nothofagus. |
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| Osmanthus delavayi |
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P. ramorum foliage blight, drip tip and shoot tip die-back on Osmanthus delavayi
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| Osmanthus delavayi |
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P. ramorum foliage blight on Osmanthus delavayi
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| Osmanthus delavayi |
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Close-up of P. ramorum foliage blight, defoliation and shoot tip die-back on Osmanthus delavayi
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| Pieris sp. |
Pieris |
Foliage necrosis (drip tip necrosis, leaf blotch and margin infections) on Pieris.
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| Pieris sp. |
Pieris |
Drip tip necrosis spreading to the mid-rib vein, casued by P. ramorum on Pieris.
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| Quercus cerris |
Turkey Oak |
An exposed lesion on turkey oak showing inner bark (phloem) necrosis compared with healthy (pinky-red) inner bark.
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| Quercus cerris |
Turkey oak |
Stem bleeding (tarry ooze) on Turkey oak as a result of inner bark necrosis caused by P. ramorum. |
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| Quercus falcata |
Southern red oak |
Inner bark (phloem) necrosis and stem bleeding on Southern red oak
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| Quercus falcata |
Southern red oak |
Bleeding or tarry ooze on the trunk of a Suthern red oak infected with P. ramorum
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| Quercus ilex |
Holm oak |
Close up of leaf margin necrosis caused by P. ramorum on Quercus ilex.
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| Quercus ilex |
Holm oak |
Shoot tip dieback on Quercus ilex caused by P. ramorum.
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| Quercus ilex |
Holm oak |
Leaf blight on Holm oak (Quercus ilex) caused by P. ramorum. |
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| Quercus ilex |
Holm oak |
Shoot tip and petiole infection on Quercus ilex caused by P. ramorum resulting in shoot tip wilt.
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| Quercus petraea |
Sessile Oak |
Bleeding canker on Quercus petraea (Sessile Oak) caused by P. ramorum. Note: the close proximity of infected rhododendrons to the oak. |
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| Quercus petraea |
Sessile Oak |
Exposed bleeding canker lesion on Quercus petraea caused by P. ramorum.
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| Viburnum sp. |
Viburnum |
Wilting foliage on Viburnum as a result of basal/collar infection of stems (at soil-surface interface) caused by P. ramorum. |
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