Black rot of carrots

Alternaria radicina Black rot of carrots General The only known stage in all Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary

Downy mildew of Cucurbits

Pseudoperonospora cubensis Downy mildew of Cucurbits General Pseudoperonospora cubensis is a plant pathogen causing downy mildew on cucurbit crops like cucumber, cantaloupe, pumpkin, watermelon and sq

Charcoal rot

Macrophomina phaseolina Charcoal rot General Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which are economic

Loose smut of wheat

Ustilago tritici (Ustilago segetum var. tritici, Ustilago nuda f.sp. tritici) Loose smut of wheat General Ustilago nuda f.sp. tritici is a basidiomyceteous fungus that affects wheat. It is also known

Black root rot of cucurbits

Phomopsis sclerotioides (Diaporthe sclerotioides) Black root rot of cucurbits General Phomopsis sclerotioides is a plant pathogen infecting cucurbits, causing black root rot of cucurbits. Life cycle a

Blight of pepper

Phytophthora capsici Blight of pepper General Phytophthora capsici is an oomycete plant pathogen that causes blight and fruit rot of peppers and other important commercial crops. Life cycle and appear

Pea blight, leaf and pod spot

Ascochyta pisi Pea blight, leaf and pod spot General Ascochyta pisi is a fungal plant pathogen that causes A scochyta blight on pea (leaf blight or pea blight) and lesions of stems, leaves, and pods (

Bacterial spot

Xanthomonas vesicatoria Bacterial spot General Xanthomonas vesicatoria is a bacterium that causes bacterial leaf spot on peppers and tomatoes. Life cycle and appearance of Bacterial spot Xanthomonas v

Apple collar rot

Phytophthora cactorum Apple collar rot General Phytophthora cactorum is a plant pathogen that causes root rot, rhizome rot of strawberry, apple rot, apple collar rot and crown rot. It has an extremely

Pierce's disease of grapevine

Xylella fastidiosa Pierce's disease of grapevine General Xylella fastidiosa is a gram-negative bacterium which is limited to xylem tissue. It has many hosts, many of which show minor or no symptoms. M