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Sycamore Tar Spot (Rhytisma acerinum) lesions on Sycamore (Acer pseudoplatanus) leaf, Maritime Alps, France, September  -  Bob Gibbons/ FLPA
80182884
80182884 Sycamore Tar Spot (Rhytisma acerinum) lesions on Sycamore (Acer pseudoplatanus) leaf, Maritime Alps, France, September© Bob Gibbons / FLPA
Common Ash (Fraxinus excelsior) dieback of leaves, caused by Ash Dieback (Chalara fraxinea) fungal disease, Norfolk, England, June  -  Roger Tidman/ FLPA
80179499
80179499 Common Ash (Fraxinus excelsior) dieback of leaves, caused by Ash Dieback (Chalara fraxinea) fungal disease, Norfolk, England, June© Roger Tidman / FLPA
European pear rust (Gymnosporangium sabinae) growth blister producing aeciospores on the lower surface of a pear leaf, Berkshire, UK, September.
90873528
90873528 European pear rust (Gymnosporangium sabinae) growth blister producing aeciospores on the lower surface of a pear leaf, Berkshire, UK, September.©
European pear rust (Gymnosporangium sabinae) lesions on the upper surface of a pear leaf, Berkshire, UK, September.
90873527
90873527 European pear rust (Gymnosporangium sabinae) lesions on the upper surface of a pear leaf, Berkshire, UK, September.©
Cucumber powedery mildew (Podosphaera fuliginea) white fungal mycelium on leaves of a fruiting cucurbit plant, Berkshire, UK, September.
90873523
90873523 Cucumber powedery mildew (Podosphaera fuliginea) white fungal mycelium on leaves of a fruiting cucurbit plant, Berkshire, UK, September.©
Brown rot (Monilinia fructigena) infection on a bunch of ripening Victoria plums (Prunus domestica) on the tree, Berkshire, UK, August.
90873506
90873506 Brown rot (Monilinia fructigena) infection on a bunch of ripening Victoria plums (Prunus domestica) on the tree, Berkshire, UK, August.©
Black spot (Diplocarpon rosae) necrotic dark spots of a fungus disease on the leaves of a garden rose, Berkshire, UK, July.
90873490
90873490 Black spot (Diplocarpon rosae) necrotic dark spots of a fungus disease on the leaves of a garden rose, Berkshire, UK, July.©
Black spot (Diplocarpon rosae) necrotic dark lesions and chlorosisd on a shrub garden rose (Rosa sp.) leaf, Berkshire, England, May
90872023
90872023 Black spot (Diplocarpon rosae) necrotic dark lesions and chlorosisd on a shrub garden rose (Rosa sp.) leaf, Berkshire, England, May©
Black rot (Guignardia bidwellii f. muscadinii) leaf spot lesions on muscadine grapevine, Florida, USA, May
90867125
90867125 Black rot (Guignardia bidwellii f. muscadinii) leaf spot lesions on muscadine grapevine, Florida, USA, May©
Cytospora canker (Cytospora leucostoma) canker disease exudation from a peach tree trunk, USA, September
90867124
90867124 Cytospora canker (Cytospora leucostoma) canker disease exudation from a peach tree trunk, USA, September©
Cedar apple rust (Gymnosporangium juniperi-virginianae) pustules on the underside of an apple leaf, New York, USA, September
90867119
90867119 Cedar apple rust (Gymnosporangium juniperi-virginianae) pustules on the underside of an apple leaf, New York, USA, September©
Apple scab (Venturia inaequalis) lesions and cracking on ripe on apple fruit, New York State, USA, September
90867113
90867113 Apple scab (Venturia inaequalis) lesions and cracking on ripe on apple fruit, New York State, USA, September©
Brown or leaf rust (Puccinia triticina) infection on flag leaves and ears of a wheat crop in green unripe ears
90867096
90867096 Brown or leaf rust (Puccinia triticina) infection on flag leaves and ears of a wheat crop in green unripe ears©
Brown rust (Puccinia hordei) pustules of infection on barley flag leaf from crop plant in ear
90867079
90867079 Brown rust (Puccinia hordei) pustules of infection on barley flag leaf from crop plant in ear©
Clubroot (Plasmodiophora brassica) diseased twisted, malformed and distorted root on a cabbage plant
90867070
90867070 Clubroot (Plasmodiophora brassica) diseased twisted, malformed and distorted root on a cabbage plant©
Black dot (Colletotrichum coccodes) necrotic lesions on the stem base of a mature potato plant
90867065
90867065 Black dot (Colletotrichum coccodes) necrotic lesions on the stem base of a mature potato plant©
Black dot (Colletotrichum coccodes) necrotic lesions on the stem base of a mature potato plant
90867064
90867064 Black dot (Colletotrichum coccodes) necrotic lesions on the stem base of a mature potato plant©
Carnation rust (Uromyces dianthi) pustules erupting on Dianthus spp. leaf base and stem, Italy
90867063
90867063 Carnation rust (Uromyces dianthi) pustules erupting on Dianthus spp. leaf base and stem, Italy©
Thuja needle scorch, cedar or Keithia leaf blight (Didymascella thujina) fruiting bodies on western red cedar (Thuja plicata) leaflets
90867062
90867062 Thuja needle scorch, cedar or Keithia leaf blight (Didymascella thujina) fruiting bodies on western red cedar (Thuja plicata) leaflets©
Mallow rust (Puccinia malvacearum) necrotic lesions on the upper surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June
90851303
90851303 Mallow rust (Puccinia malvacearum) necrotic lesions on the upper surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June©
Mallow rust (Puccinia malvacearum) disease pustules on the lower surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June
90851302
90851302 Mallow rust (Puccinia malvacearum) disease pustules on the lower surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June©
Mallow rust (Puccinia malvacearum) disease pustules on the lower surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June
90851301
90851301 Mallow rust (Puccinia malvacearum) disease pustules on the lower surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June©
Mallow rust (Puccinia malvacearum) necrotic lesions on the upper surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June
90851300
90851300 Mallow rust (Puccinia malvacearum) necrotic lesions on the upper surface of a common mallow (Malva neglecta) leaf, Berkshire, England, UK, June©
Garlic or leek rust (Puccinia allii) fungal disease pustules on garlic leaves and stem, Berkshire, England, UK, June
90851286
90851286 Garlic or leek rust (Puccinia allii) fungal disease pustules on garlic leaves and stem, Berkshire, England, UK, June©
Garlic or leek rust (Puccinia allii) fungal disease pustules on garlic leaves and stem, Berkshire, England, UK, June
90851285
90851285 Garlic or leek rust (Puccinia allii) fungal disease pustules on garlic leaves and stem, Berkshire, England, UK, June©
Poplar rust (Melampsora sp) disease pustules on underside of White poplar (Populus alba) leaf.
90844025
90844025 Poplar rust (Melampsora sp) disease pustules on underside of White poplar (Populus alba) leaf.©
Plum rust (Tranzschelia discolor) fungal disease pustules on underside of Plum (Prunus domestica) leaf.
90844024
90844024 Plum rust (Tranzschelia discolor) fungal disease pustules on underside of Plum (Prunus domestica) leaf.©
Plum (Prunus domestica) with Silver leaf (Chondrostereum purpureum) disease, in old orchard.
90844022
90844022 Plum (Prunus domestica) with Silver leaf (Chondrostereum purpureum) disease, in old orchard.©
Nerine (Nerine bowdenii) bulb in cross section with necrosis caused by Basal rot (Fusarium oxysporum).
90844017
90844017 Nerine (Nerine bowdenii) bulb in cross section with necrosis caused by Basal rot (Fusarium oxysporum).©
Pear rust (Gymnosporangium fuscum) pustules and damage on underside of Pear (Pyrus communis) leaves. Berkshire, England, UK. September.
90844013
90844013 Pear rust (Gymnosporangium fuscum) pustules and damage on underside of Pear (Pyrus communis) leaves. Berkshire, England, UK. September.©
Pear rust (Gymnosporangium fuscum) pustules and damage on underside of Pear (Pyrus communis) leaves. Berkshire, England, UK. September.
90844012
90844012 Pear rust (Gymnosporangium fuscum) pustules and damage on underside of Pear (Pyrus communis) leaves. Berkshire, England, UK. September.©
Pear rust (Gymnosporangium fuscum) pustules and damage on upper and lower surfaces of Pear (Pyrus communis) leaves. Berkshire, England, UK. September.
90844011
90844011 Pear rust (Gymnosporangium fuscum) pustules and damage on upper and lower surfaces of Pear (Pyrus communis) leaves. Berkshire, England, UK. September.©
Mint rust (Puccinia menthae) pustules on Peppermint (Mentha x piperata) leaf. Devon, England, UK.
90844010
90844010 Mint rust (Puccinia menthae) pustules on Peppermint (Mentha x piperata) leaf. Devon, England, UK.©
Broad bean (Vicia faba) leaf with early infection of Faba-bean rust caused by Fungus (Uromyces viciae-fabae).
90844009
90844009 Broad bean (Vicia faba) leaf with early infection of Faba-bean rust caused by Fungus (Uromyces viciae-fabae).©
Pea (Pisum sativum) damaged by Pea seed-borne mosaic virus (PSbMV). Peas with tennis ball appearance, in pod.
90844008
90844008 Pea (Pisum sativum) damaged by Pea seed-borne mosaic virus (PSbMV). Peas with tennis ball appearance, in pod.©
Peas (Pisum sativum) damaged by Pea seed-borne mosaic virus (PSbMV), in pod.
90844007
90844007 Peas (Pisum sativum) damaged by Pea seed-borne mosaic virus (PSbMV), in pod.©
Pea (Pisum sativum) infected with Footrot (Didymella pinodella), affecting roots and stem.
90844005
90844005 Pea (Pisum sativum) infected with Footrot (Didymella pinodella), affecting roots and stem.©
Barley (Hordeum vulgare) leaves diseased with chlorotic symptoms of Barley yellow mosaic virus (BaYMV).
90844002
90844002 Barley (Hordeum vulgare) leaves diseased with chlorotic symptoms of Barley yellow mosaic virus (BaYMV).©
Rhizomania root disease on Sugar beet (Beta vulgaris) leaves, caused by Beet necrotic yellow vein virus (BNYVV). Greece.
90844001
90844001 Rhizomania root disease on Sugar beet (Beta vulgaris) leaves, caused by Beet necrotic yellow vein virus (BNYVV). Greece.©
Subterranean clover stunt virus (SCSV) damage and distortion to Red clover (Trifolium pratense) leaves.
90844000
90844000 Subterranean clover stunt virus (SCSV) damage and distortion to Red clover (Trifolium pratense) leaves.©
Oat sterile dwarf virus (OSDv) disease causing stunting of Ryegrass (Lolium sp).
90843999
90843999 Oat sterile dwarf virus (OSDv) disease causing stunting of Ryegrass (Lolium sp).©
Speckled snow mould (Typhula incarnata) sclerotia and necrotic damage to Barley (Hordeum vulgare) leaves. Scotland, UK. January.
90843998
90843998 Speckled snow mould (Typhula incarnata) sclerotia and necrotic damage to Barley (Hordeum vulgare) leaves. Scotland, UK. January.©
Speckled snow mould (Typhula incarnata) sclerotia on base of young Barley (Hordeum vulgare) stem. Scotland, UK. January.
90843997
90843997 Speckled snow mould (Typhula incarnata) sclerotia on base of young Barley (Hordeum vulgare) stem. Scotland, UK. January.©
Pink snow mould (Monographella nivalis) and complex disease on roots and stem of Wheat (Triticum aestivum) seedling.
90843996
90843996 Pink snow mould (Monographella nivalis) and complex disease on roots and stem of Wheat (Triticum aestivum) seedling.©
Leaf spot anthracnose (Discula destructiva) spots on dogwood (Cornus sp.) leaves, Berkshire, England, UK, September
90842611
90842611 Leaf spot anthracnose (Discula destructiva) spots on dogwood (Cornus sp.) leaves, Berkshire, England, UK, September© Nigel Cattlin
Fruiting bodies of Honey fungus (Armillaria mellea) around the base of an old apple tree in autumn, Devon, England, UK. November
90842605
90842605 Fruiting bodies of Honey fungus (Armillaria mellea) around the base of an old apple tree in autumn, Devon, England, UK. November© Nigel Cattlin
Fruiting bodies of Honey fungus (Armillaria mellea) around the base of an old apple tree in autumn, Devon, England, UK. November
90842604
90842604 Fruiting bodies of Honey fungus (Armillaria mellea) around the base of an old apple tree in autumn, Devon, England, UK. November© Nigel Cattlin
Powdery mildew (Podosphaera pannosa) fungal infection on rose leaves, Berkshire, September
90842581
90842581 Powdery mildew (Podosphaera pannosa) fungal infection on rose leaves, Berkshire, September© Nigel Cattlin
Chlorosis in leaves of a creeping thistle (Cirsium arvense) caused by a bacterial pathogen Pseudomonas syringae pv tagetis - a possible method of biological control of this weed
90842579
90842579 Chlorosis in leaves of a creeping thistle (Cirsium arvense) caused by a bacterial pathogen Pseudomonas syringae pv tagetis - a possible method of biological control of this weed© Nigel Cattlin
Chlorosis in leaves of a creeping thistle (Cirsium arvense) caused by a bacterial pathogen Pseudomonas syringae pv tagetis - a possible method of biological control of this weed
90842578
90842578 Chlorosis in leaves of a creeping thistle (Cirsium arvense) caused by a bacterial pathogen Pseudomonas syringae pv tagetis - a possible method of biological control of this weed© Nigel Cattlin
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