Herbarium

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Ophiognomonia leptostyla, Anthracnose of wallnut

. Juglans regia. Sign: acervulus. Overwintering: with perithecium in infected plant parts

Stigmina carpophila, shot hole disease of stone fruits

. prunus persicae. Sign: conidiophore. Overwintering: mycelium, conidium in twig and fallen leaf

Phyllactinia guttata, Powdery mildew of hardwood trees

Corylus avellana. SIGN: epiphytic mycelium, conidial chain and chasmothecium

Pseudoperonospora cubensis, Downey mildew of cucumber

Cucumis sativus. Sign: lawn of sporangiophores. Overwintering: sporangia on leaves

Podosphaera fuliginea, Powdery mildew of cucumber

Cucurbita pepo. Sign: epyphytic mycelium with conidial chains, chasmothecium. Overwintering: with chasmothecia on infected plant residues

Xanthomonas hortorum pv. carotae, Bacterial blight of carrot

Daucus carota. Sign: lawn of conidiophores. Overwintering: in/on seeds, plant residues

Podosphaera mors uvae, Powdery mildew of gooseberry and currants

Grossularia uva-crispa. Sign: epyphytic mycelium with conidial chains, chasmothecium. Overwintering: with chasmothecium or mycelium on infected twigs

Erysiphe cichoracearum, Powdery mildew of cucurbits

Helianthus tuberosus. SIGN: epiphytic mycelium, conidial chain and chasmothecium

Podosphaera leucotricha, apple powdery mildew

Malus domestica. SIGN: epiphytic mycelium, conidial chain and chasmothecium. overwinters in mycelium in buds

Venturia inaequalis, Apple scab

Malus domestica. Sign: lawn of conidiophore. Overwintering: with perithecium in fallen leaves and fruits

Uromyces appendiculatus, dry bean rust

Phaseolus vulgaris. sign: uredia with urediniospores, teliutospores, basidiospores, pycnidium and aecium.

Kuehneola uredinis, Cane and leaf rust

Rubus fruticosa. Sign: conidiophore. Overwintering: as mycelium or conidiophores in leaf debris

Mycosphaerella sentina, Pear Mycosphaerella leaf spot

Sign: pycnidium Overwintering: mainly with perithecium in leaf debris. pear with small holes

Alternaria solani, early blight of tomato

Solanum lycopersicum. Sign: lawn of conidiophores. Overwintering: in/on seeds, plant residues

Alternaria brassicae Black spot of brassicas

brassica oleracea var capitata. Sign: lawn of conidiophores. Overwintering: in/on seeds, plant residues

Phyllosticta mali, apple leaf blotch

malus domestica. last page, ba lack spots

Puccinia menthae, Peppermint rust

mentha piperita. sign: underside with uredinia. overwinter: telia.

Blumeriella jaapi, cherry leaf spot

prunus avium. sign: acervulus. Overwinter: stromata in fallen leaves on the ground

Ramularia rubella, Ramularia leaf spot

rumex fruticosa

gymnosporangium sabinae, European pear rust

sign: orange spots on upper surface of the leaves, gall-like outgrowths on lower leaf surface. Overwintering infection: in swellings on stems of juniper species with mycelium


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