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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
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
Septoria leaf blotch (Mycosphaerella graminicola) lesions of fungal disease with pycnidia on wheat leaves. England, UK.
90840678
90840678 Septoria leaf blotch (Mycosphaerella graminicola) lesions of fungal disease with pycnidia on wheat leaves. England, UK.© Nigel Cattlin
Halo spot (Pseudoseptoria donacis) fungus disease lesions on barley crop leaves
90840650
90840650 Halo spot (Pseudoseptoria donacis) fungus disease lesions on barley crop leaves© Nigel Cattlin
Sharp eyespot (Ceratobasidium cereale) eye-shaped pale lesions of a fungal disease on wheat stem base
90840649
90840649 Sharp eyespot (Ceratobasidium cereale) eye-shaped pale lesions of a fungal disease on wheat stem base© Nigel Cattlin
Shot hole (Pseudomonas syringae morsprunorum) a bacterial disease causing lesions and 'shot-hole' effect in a plum leaf
90840643
90840643 Shot hole (Pseudomonas syringae morsprunorum) a bacterial disease causing lesions and 'shot-hole' effect in a plum leaf© Nigel Cattlin
Focus of infection of BYDV (barley yellow dwarf virus) with chlorosis and leaf tipping symptoms in maturing wheat crop in ear. England, UK.
90840635
90840635 Focus of infection of BYDV (barley yellow dwarf virus) with chlorosis and leaf tipping symptoms in maturing wheat crop in ear. England, UK.© Nigel Cattlin
Hypersensitive reaction to powdery mildew (Blumeria graminis) causing necrotic lesions on barley leaf
90840634
90840634 Hypersensitive reaction to powdery mildew (Blumeria graminis) causing necrotic lesions on barley leaf© Nigel Cattlin
Loose smut (Ustilago nuda) varying degrees of fungal disease infection on smutted ears of barley
90840629
90840629 Loose smut (Ustilago nuda) varying degrees of fungal disease infection on smutted ears of barley© Nigel Cattlin
Focus of infection of barley yellow dwarf virus (BYDV), red leaf damage symptoms on young oats crop, Hampshire, England, UK.
90840625
90840625 Focus of infection of barley yellow dwarf virus (BYDV), red leaf damage symptoms on young oats crop, Hampshire, England, UK.© Nigel Cattlin
Focus of infection of barley yellow dwarf virus (BYDV), red leaf damage symptoms on young oat crop, Hampshire, England, UK.
90840624
90840624 Focus of infection of barley yellow dwarf virus (BYDV), red leaf damage symptoms on young oat crop, Hampshire, England, UK.© Nigel Cattlin
Leaf spot (Ascochyta fabae) crop fungal disease lesions on a field bean leaf (Vicia faba)
90840618
90840618 Leaf spot (Ascochyta fabae) crop fungal disease lesions on a field bean leaf (Vicia faba)© Nigel Cattlin
Leaf canker or black leg disease (Leptosphaeria maculans) crop disease lesion and pycnidia on oilseed rape leaf
90840617
90840617 Leaf canker or black leg disease (Leptosphaeria maculans) crop disease lesion and pycnidia on oilseed rape leaf© Nigel Cattlin
Light leaf spot (Pyrenopeziza brassicae) fungal disease lesion on oilseed rape or canola leaf (Brassica napus)canola
90840616
90840616 Light leaf spot (Pyrenopeziza brassicae) fungal disease lesion on oilseed rape or canola leaf (Brassica napus)canola© Nigel Cattlin
Leaf blotch (Rhynchosporium secalis) fungal disease lesions on ryegrass (Lolium perenne) leaves
90840608
90840608 Leaf blotch (Rhynchosporium secalis) fungal disease lesions on ryegrass (Lolium perenne) leaves© Nigel Cattlin
Ergot (Claviceps purpurea) ergots replacing grains in a ripening wheat ear
90828234
90828234 Ergot (Claviceps purpurea) ergots replacing grains in a ripening wheat ear© Nigel Cattlin
Wheat leaf stripe (Cephalosporium gramineum) on flag leaves and lower leaves of wheat crop in ear
90828218
90828218 Wheat leaf stripe (Cephalosporium gramineum) on flag leaves and lower leaves of wheat crop in ear© Nigel Cattlin
Doyenne du Comice pear (Pyrus communis) fruit with deformity caused by Pear stony pit virus. Berkshire, England, UK.
90824469
90824469 Doyenne du Comice pear (Pyrus communis) fruit with deformity caused by Pear stony pit virus. Berkshire, England, UK.© Nigel Cattlin
Doyenne du Comice pear (Pyrus communis) fruit with deformity caused by Pear stony pit virus. Berkshire, England, UK.
90824468
90824468 Doyenne du Comice pear (Pyrus communis) fruit with deformity caused by Pear stony pit virus. Berkshire, England, UK.© Nigel Cattlin
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