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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
Leaf canker (Leptosphaeria maculans) lesion with black pycnidia on the leaf of Oilseed rape (Brassica napus) .
90890543
90890543 Leaf canker (Leptosphaeria maculans) lesion with black pycnidia on the leaf of Oilseed rape (Brassica napus) .©
True eyespot rot (Tapesia yallundae) creating eyespot lesion on Bread wheat (Triticum aestivum) stem base.
90890163
90890163 True eyespot rot (Tapesia yallundae) creating eyespot lesion on Bread wheat (Triticum aestivum) stem base.©
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.©
Necrosis and chlorosis on potato leaflets, a symptom of magnesium deficiency in a garden crop, Berkshire, UK, July.
90873491
90873491 Necrosis and chlorosis on potato leaflets, a symptom of magnesium deficiency in a garden crop, Berkshire, UK, July.©
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©
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©
Needle cast (Rhabdocline pseudotsugae) discolouration and symptoms of infection on douglas fir needles
90867083
90867083 Needle cast (Rhabdocline pseudotsugae) discolouration and symptoms of infection on douglas fir needles©
Blackberry rust (Kuehneola uredinis) lesions and orange spores on the stem of Bramble (Rubus fructicosus), Berkshire, England, UK, May
90851259
90851259 Blackberry rust (Kuehneola uredinis) lesions and orange spores on the stem of Bramble (Rubus fructicosus), Berkshire, England, UK, May©
Blackberry rust (Kuehneola uredinis) lesions and orange spores on the stem of Bramble(Rubus fructicosus), Berkshire, England, UK, May
90851258
90851258 Blackberry rust (Kuehneola uredinis) lesions and orange spores on the stem of Bramble(Rubus fructicosus), Berkshire, England, UK, May©
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.©
Apple canker (Neonectria ditissima) lesion in a branch of an old orchard tree. A fungus diseases, Berkshire, November.
90842592
90842592 Apple canker (Neonectria ditissima) lesion in a branch of an old orchard tree. A fungus diseases, Berkshire, November.© 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
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
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
Antirrhinum or snapdragon rust (Puccinia antirrhini) pustules in a circular lesion on the underside of Snapdragon (Antirrhinum sp) leaf, August.
90824412
90824412 Antirrhinum or snapdragon rust (Puccinia antirrhini) pustules in a circular lesion on the underside of Snapdragon (Antirrhinum sp) leaf, August.© Nigel Cattlin
Downy mildew (Peronospora parasitica) mycelium and lesion on underside of Oilseed rape (Brassica napus napus) leaf.
90818898
90818898 Downy mildew (Peronospora parasitica) mycelium and lesion on underside of Oilseed rape (Brassica napus napus) leaf.© Nigel Cattlin
Grey mould Botrytis cinerea lesions on a strawberry leaf during a wet summer  -  Nigel Cattlin/ FLPA
80149499
80149499 Grey mould Botrytis cinerea lesions on a strawberry leaf during a wet summer© Nigel Cattlin / FLPA
Maize (Zea mays) crop, leaves damaged by Northern Leaf Blight (Exserohilum turcicum), Gisborne, North Island, New Zealand  -  Duncan Smith/ FLPA
80146144
80146144 Maize (Zea mays) crop, leaves damaged by Northern Leaf Blight (Exserohilum turcicum), Gisborne, North Island, New Zealand© Duncan Smith / FLPA
Potato early blight (Alternaria alternata) discreet lesions on a potato leaf  -  Nigel Cattlin/ FLPA
80125712
80125712 Potato early blight (Alternaria alternata) discreet lesions on a potato leaf© Nigel Cattlin / FLPA
Anthracnose (Colletotrichum gloeosporioides) lesions and weeping on a mango fruit on the tree, Transvaal, South Africa, February
90869849
90869849 Anthracnose (Colletotrichum gloeosporioides) lesions and weeping on a mango fruit on the tree, Transvaal, South Africa, February©
Downy mildew (Pseudoperonospora cubensis) a water mould causing downy mildew lesions on the leaf of a squash plant, Thailand
90869841
90869841 Downy mildew (Pseudoperonospora cubensis) a water mould causing downy mildew lesions on the leaf of a squash plant, Thailand©
Asian soybean rust (Phakopsora pachyrizi) pustules on the under surface of a soybean leaf, Thailand
90869826
90869826 Asian soybean rust (Phakopsora pachyrizi) pustules on the under surface of a soybean leaf, Thailand©
Asian soybean rust (Phakopsora pachyrizi) pustules on the under surface of a soybean leaf, Thailand
90869825
90869825 Asian soybean rust (Phakopsora pachyrizi) pustules on the under surface of a soybean leaf, Thailand©
Downy mildew (Peronospora manshurica) disease lesions on on the upper surface of a soyabean leaf, Thailand
90869824
90869824 Downy mildew (Peronospora manshurica) disease lesions on on the upper surface of a soyabean leaf, Thailand©
Downy mildew (Peronospora manshurica) disease lesions on on the upper surface of a soyabean leaf, Thailand
90869823
90869823 Downy mildew (Peronospora manshurica) disease lesions on on the upper surface of a soyabean leaf, Thailand©
Downy mildew (Peronospora manshurica) disease lesions on on the upper surface of a soyabean leaf, Thailand
90869822
90869822 Downy mildew (Peronospora manshurica) disease lesions on on the upper surface of a soyabean leaf, Thailand©
Leaf spot (Cercospora lactucae-sativae) necrotic 'eye-spot' leaf lesions on lettuce, Thailand
90869819
90869819 Leaf spot (Cercospora lactucae-sativae) necrotic 'eye-spot' leaf lesions on lettuce, Thailand©
Rose black spot (Diplocarpon rosae) dark lesions of rose fungal disease and leaf venation shown with back lighting
90869816
90869816 Rose black spot (Diplocarpon rosae) dark lesions of rose fungal disease and leaf venation shown with back lighting©
Leaf spot (Cochliobolus sativus / Bipolaris sorokiniana) fungal disease lesions on grass (Agrostis sp.) leaves
90869814
90869814 Leaf spot (Cochliobolus sativus / Bipolaris sorokiniana) fungal disease lesions on grass (Agrostis sp.) leaves©
Net blotch (Pyrenophora teres) necrotic stripe lesions on barley leaves from a mature crop France.
90867167
90867167 Net blotch (Pyrenophora teres) necrotic stripe lesions on barley leaves from a mature crop France.©
Net blotch (Pyrenophora teres) necrotic disease lesions on barley leaves of a crop coming into ear. France.
90867166
90867166 Net blotch (Pyrenophora teres) necrotic disease lesions on barley leaves of a crop coming into ear. France.©
Skin spot (Polyscytalum pustulans) lesions on the stem base and roots of a maturing potato plant
90867163
90867163 Skin spot (Polyscytalum pustulans) lesions on the stem base and roots of a maturing potato plant©
Stem canker (Rhizoctonia solani) lesions on the lower stem base and roots on a maturing plant in a potato crop
90867162
90867162 Stem canker (Rhizoctonia solani) lesions on the lower stem base and roots on a maturing plant in a potato crop©
Photomicrograph of yellow rust or stripe rust (Puccinia striiformis var. striiformis) sorulating pustules along the veins of a wheat leaf
90867156
90867156 Photomicrograph of yellow rust or stripe rust (Puccinia striiformis var. striiformis) sorulating pustules along the veins of a wheat leaf©
Necrotic lesions and damage on the margin of a Pinot Noir grapevine leaf caused by manganese deficiency, Champagne, France
90867141
90867141 Necrotic lesions and damage on the margin of a Pinot Noir grapevine leaf caused by manganese deficiency, Champagne, France©
Post-harvest penicillium storage mould (Penicillium italicum) mycelium and rot on stored apple fruit
90867140
90867140 Post-harvest penicillium storage mould (Penicillium italicum) mycelium and rot on stored apple fruit©
Pear leaf underside with fungal spotting caused by pear scab (Venturia pyrina), September
90867139
90867139 Pear leaf underside with fungal spotting caused by pear scab (Venturia pyrina), September©
Early blight or target spot (Alternaria solani) discreet necrotic lesions and some chlorosis on a tomato leaflet, New York, USA, May.
90867132
90867132 Early blight or target spot (Alternaria solani) discreet necrotic lesions and some chlorosis on a tomato leaflet, New York, USA, May.©
Leaf spot or Alternaria blight (Alternaria helianthi) discreet spots with a chlorotic halo on a sunflower leaf, France
90867131
90867131 Leaf spot or Alternaria blight (Alternaria helianthi) discreet spots with a chlorotic halo on a sunflower leaf, France©
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