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Two rust fungi on wood anemone (Anemone nemorosa): Ochropsora ariae (white pustules) and Tranzschelia anemones (deformed leaves and dark brown spores).

#fungi #fungus #mycology #plant pathology #rust disease #anemone #disease #basidiomycota #pucciniales #spores #wood anemone

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Leaf spot disease symptoms on Fiber Hemp (Cannabis sativa).

#plant pathology #plant pathogen #hemp #fiber hemp #leaf spot disease #ascomycota #fungi #fungus #mycology #botany

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Chocolate spot disease of Faba bean (Vicia faba) is caused by the fungus Botrytis fabae.

#fungi #fungus #mycology #microfungi #plant pathology #plant disease #faba bean #vicia #botrytis #photography #botany #ascomycota #leaf spot

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Powdery mildew fungus (Phyllactinia fraxini) producing chasmothecia on European ash (Fraxinus excelcior).

#fungi #fungus #mycology #microscopy #microfungi #plant parasite #plant pathogen #parasite #plant disease #ascomycota #chasmothecia #ash #photography #botany #mycelium #plant pathology

[aphidcluster]

Stem rust disease is caused by the fungus Puccinia graminis. Masses of teliospores are seen in the pictures above.

#fungi #fungus #mycology #microscopy #photography #microfungi #plant pathology #plant disease #puccinia #basidiomycota #parasite #poaceae #botany #herbarium #teliospore #disease #grass #spores

[aphidcluster]

Exobasidium vaccinii fungus causing disease on lingonberry (Vaccinium vitis-idaea)

#fungi #fungus #microscopy #botany #mycelium #exobasidiaceae #vaccinium #lingonberry #photography #microfungi #plant pathology #plant disease #gall

[aphidcluster]

Crown gall disease of willow (Salix spp.) is caused by Agrobacterium tumefaciens bacterium.

#plant pathology #plant disease #crown gall #bacteria #gram-negative #salix #botany #ti plasmid #tumors #willow #disease

[aphidcluster]

Venturia inaequalis -fungus is causing the apple scab disease symptoms on apple (Malus domestica).

#fungi #fungus #plant disease #plant pathology #mycology #apple #apple scab #disease #malus

[aphidcluster]

Powdery mildew (Podosphaera amelanchieris on Amelanchier lamarckii) chasmothecia with dichotomous appendages.

#fungi #fungus #mycology #plant pathology #plant disease #microscopy #400X #powdery mildew #erysiphales #ascomycota #parasite #microfungi #ascus #ascospores #spores

[aphidcluster]

Monilinia fructigena -fungus causing a fruit rot of plums, pears and apples.

#fungus #fungi #mycology #plant pathology #pear #apple #plum #fruits #rot #plant disease #ascomycota

[aphidcluster]

Powdery mildew fungi (Phyllactinia fraxini) on ash (Fraxinus excelsior).

#fungi #fungus #spores #mycelium #plant pathology #plant disease #powdery mildew #mycology #parasite #ascomycota #ash #botany #conidiospore #chasmothecium #microscopy #400X #microfungi #asci #ascospore

[aphidcluster]

Rust fungus (Puccinia sp.) on chives (Allium schoenoprasum).

#fungi #fungus #mycology #plant disease #parasite #rust #allium #botany #chives #microscopy #basidiomycota #400X #microfungi #plant pathology #puccinia #urediniospore #teliospore

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Puccinia hieracii -rust fungus on mouse-ear hawkweed (Pilosella officinarum).

#fungi #fungus #microfungi #microscopy #plant pathology #mycology #plant disease #puccinia #pilosella #urediniospore #rust #parasite #basidiomycota #400X

[aphidcluster]

Rhytisma salicinum -fungus causes willow tar spot symptoms on Salix plants.

#fungi #fungus #mycology #tar spot #plant pathogen #plant disease #willow #salix #ascomycota #tar

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Shot hole disease (Stigmina carpophila -fungus) symptoms on plum leaves (Prunus domestica).

#fungus #fungi #plum #shot hole disease #plant pathogen #plant disease #prunus #disease #mycology #herbarium #nature

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Powdery mildew (Podosphaera aucupariae -fungus) symptoms on rowan tree (Sorbus aucuparia).

#fungi #fungus #mycology #plant pathology #microscopy #plant parasite #ascomycota #erysiphales #chasmothecia #rowan #mountain ash #tree disea #parasidepapers #spores

[aphidcluster]

Bean pods (Phaseolus vulgaris var. nanus) on the left side are infected by grey mold (Botrytis cinerea) and on the right side by white mold (Sclerotinia sclerotiorum).

#fungi #fungus #mycology #beans #botany #plant pathology #mold #sclerotia #ascomycota #symptoms #plant disease #garden