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Turf melting out begins as black to purple spots on the leaf blades. These spots eventually appear on the leaf sheaths. The fungus then begin to move down and invade the crowns and the roots of the plants. From far away, the turf appears yellow or blackish brown. The colors that appear on the turf directly reflect the nitrogen levels in the ...
In the head, threadlike sexual spores form, which are ejected simultaneously when suitable grass hosts are flowering. Ergot infection causes a reduction in the yield and quality of grain and hay, and if livestock eat infected grain or hay it may cause a disease called ergotism. Black and protruding sclerotia of C. purpurea are well known ...
Mucormycosis, also known as black fungus, [3] [4] is a severe fungal infection [11] that comes under fulminant fungal sinusitis, [12] usually in people who are immunocompromised. [9] [13] It is curable only when diagnosed early. [12] Symptoms depend on where in the body the infection occurs.
Dollar spot is most commonly found on closely mowed turfgrasses. The pathogen infects most cool and warm-season grasses throughout the world, including creeping bentgrass (Agrostis stolonifera), annual bluegrass (Poa annua), Kentucky bluegrass (Poa pratensis), perennial ryegrass (Lolium perenne), hybrid bermudagrasses (Cynodon dactylon x tranvaalensis), seashore paspalum (Paspalum vaginatum ...
Sugarcane smut is a fungal disease of sugarcane caused by the fungus Sporisorium scitamineum. The disease is known as culmicolous, which describes the outgrowth of fungus of the stalk on the cane. It attacks several sugarcane species and has been reported to occur on a few other grass species as well, but not to a critical amount.
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One species of Curvularia, Curvularia protuberata, is an endosymbiote of the panic grass Dichanthelium lanuginosum that can enable the grass to thrive near hot springs in soil temperatures of up to 149 °F (65 °C). The fungus confers this protective effect only when itself infected by the Curvularia thermal tolerance virus (CThTV). Plants ...
Perennial ryegrass staggers is caused by the ingestion of grass that is infected by the endophyte fungus Epichloë festucae var lolli, and this fungus produces a variety of toxins such as peramine, a pyrrolopyrazine alkaloid, and lolitrem B, [2] an indole-diterpene compound. There is no external sign when perennial ryegrass is infected by this ...
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