Phomopsis sclerotioides Black root rot of cucurbits General Phomopsis sclerotioides is a plant pathogen infecting cucurbits, causing black root rot of…
years, in the case of black rot of carrots ( Alternaria radicina ) up to 8 years. Life cycle and appearance of Black rot of carrots Black rot of…
Mycosphaerella fijiensis Black sigatoka disease General Mycosphaerella fijiensis also known as black sigatoka, is an ascomycete fungus that causes…
Pythium ultimum Black leg of seedlings General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a s…
bacterial blight. Symptoms Development of water-soaked spots which turns to dark black colour oily appearance on leaves results in premature…
and branches. The entire tree dies in few months. Dark greyish brown to black colouration of wood below bark and vascular discoloured bands in the…
the petioles and stems and form long dark streaks. On fruits, first small black specks are seen on green fruits. The specks grow into brown spots that…
in plants that are infected by other pathogens. The bacteria that causes black leg in potato is a different subspecies. Damage symptoms In tomato,…
n gummy drops occur, hence the name gummy stem blight . On the lesions, black specks, the new fruiting bodies with spores, become visible. On the…
cause root- and crown rot in potted plants. The small roots die and brown-black lesions occur on the larger roots. Plants wilt and the crown leaves…
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