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Colletotrichum lindemuthianum is a fungus which causes anthracnose, or black spot disease, of the common bean plant (Phaseolus vulgaris).It is considered a hemibiotrophic pathogen because it spends part of its infection cycle as a biotroph, living off of the host but not harming it, and the other part as a necrotroph, killing and obtaining nutrients from the host tissues.
Carotenosis is a benign and reversible medical condition where an excess of dietary carotenoids results in orange discoloration of the outermost skin layer.The discoloration is most easily observed in light-skinned people and may be mistaken for jaundice.
Cherry angioma, also called cherry hemangioma [1] or Campbell de Morgan Spot, [2] is a small bright red dome-shaped bump on the skin. [3] It ranges between 0.5 – 6 mm in diameter and usually several are present, typically on the chest and arms, and increasing in number with age. [3] [4] If scratched, they may bleed. [5]
Alternaria brassicicola is a fungal necrotrophic plant pathogen that causes black spot disease on a wide range of hosts, particularly in the genus of Brassica, including a number of economically important crops such as cabbage, Chinese cabbage, cauliflower, oilseeds, broccoli and canola.
Black spot disease in crustaceans, commonly studied on the edible brachyuran crab Cancer pagurus, is a progressive degradation of the carapace cuticle and expresses itself by discoloration of the carapace. [1] The disease has been observed on a variety of crustacean species including crabs, lobster, and shrimp. [2]
Common symptoms of pecan scab disease include light brown to black lesions on stems, leaves, shucks and nuts. [ 1 ] [ 6 ] Visible circular lesions begin to develop 7 to 14 days after infection, and first appear on young tissue as olive-green spots that turn black as they age. [ 1 ]
Make sure your car, sofa and carpet look good as new afterward with the Bissell Little Green portable carpet cleaner, which removes spots and stains by lifting away messes from carpets, upholstery ...
Halo blight causes small water-soaked spots on leaves. These spot progressively turn dark brown and are surrounded by a wide greenish yellow halo. The necrotic spots remain small unlike that of common blight. [4] Similar to foliage symptoms, halo blights causes water-soaked spots on vegetative pods. It also causes streaks along pod sutures.