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Alternaria solani is a fungal pathogen that produces a disease in tomato and potato plants called early blight. The pathogen produces distinctive "bullseye" patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato. Despite the name "early", foliar symptoms usually occur on older leaves. [3]
Phytophthora infestans is an oomycete or water mold, a fungus-like microorganism that causes the serious potato and tomato disease known as late blight or potato blight. Early blight , caused by Alternaria solani , is also often called "potato blight".
Blight is a specific symptom affecting plants in response ... Early blight of potato ... expand to kill entire areas of leaf tissue and thus exhibit blight symptoms.
Alternaria leaf spot or Alternaria leaf blight are a group of fungal diseases in plants, that have a variety of hosts. [ 1 ] [ 2 ] [ 3 ] The diseases infects common garden plants, such as cabbage, and are caused by several closely related species of fungi. [ 4 ]
Late blight (oomycete) Phytophthora infestans [2] Leak : Pythium spp. Pythium ultimum var. ultimum = Pythium debaryanum Pythium aphanidermatum Pythium deliense. Pink rot : Phytophthora spp. Phytophthora cryptogea Phytophthora drechsleri Phytophthora erythroseptica Phytophthora megasperma Phytophthora nicotianae var. parasitica
Alternaria alternata – Causes early blight of potato, leaf spot disease in Withania somnifera [9] Alternaria allii - causes onion leaf blight; Alternaria arborescens – causes stem canker of tomato; Alternaria arbusti – causes leaf lesions on Asian pear; Alternaria blumeae – causes lesions on Blumea aurita
Southern corn leaf blight (SCLB) is a fungal disease of maize caused by the plant pathogen Bipolaris maydis (also known as Cochliobolus heterostrophus in its teleomorph state). The fungus is an Ascomycete and can use conidia or ascospores to infect. [ 1 ]
In Europe, ramorum blight was first observed on Rhododendron and Viburnum in the early 1990s, [3] where it was initially found mainly on container-grown plants in nurseries. [7] The principal symptoms were leaf and twig blight. [8]