Cercospora sp. Cercospora leaf spot Symptoms Leaf spots are characteristically greyish brown, circular with small to large grey centres and dark brown…
Pyrenophora graminea Leaf stripe General Pyrenophora graminea is a disease of Barley that causes significant yield losses. Life cycle and appearance…
Xanthomonas vesicatoria Bacterial spot General Xanthomonas vesicatoria is a bacterium that causes bacterial leaf spot on peppers and tomatoes. Life…
Macrophomina phaseolina Charcoal rot General Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very…
Mycosphaerella fijiensis Black sigatoka disease General Mycosphaerella fijiensis also known as black sigatoka, is an ascomycete fungus that causes…
Pseudoperonospora cubensis Cucurbits downy mildew Important disease in cucumber, ridge gourd, sponge gourd, squash, muskmelons, pumpkins and other…
Erwinia carotovora subsp. carotovora (syn. Pectobacterium carovora) Bacterial soft rot, bacterial stem rot General Erwinia carotovora subsp.…
Ustilago nuda f.sp. hordei Loose smut of barley General Ustilago nuda f.sp. hordei affects barley and can destroy a large proportion of the crop. It…
Pythium aphanidermatum Damping-off General Pythium is considered a ‘weak pathogen’, meaning that it can usually only affect plants that are in a…
Phytophthora capsici Blight of pepper General Phytophthora capsici is an oomycete plant pathogen that causes blight and fruit rot of peppers and other…
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