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Thielaviopsis is a small genus of fungi in the order Microascales, [1] and family Ceratocystidaceae. [2] The genus includes several important agricultural based pathogens.The most widespread is T. basicola, the causal agent in several root rot diseases of economically important crop species including cotton and a variety of vegetables.
Thielaviopsis basicola is a soilborne fungus that belongs to the Ascomycota division of the "true fungi" and is a hemibiotrophic parasite. [3] Fungi belonging to Ascomycota are known to produce asexual and sexual spores, however, a sexual stage has yet to be observed and validated in the Thielaviopsis basicola life cycle, which classifies this species as one of the Deuteromycete or an ...
Agroathelia rolfsii typically prefers warm, humid climates (whence the name of the disease, Southern Blight) which is required for optimal growth (i.e. to produce mycelium and sclerotia). [ 12 ] [ 8 ] [ 11 ] This makes the disease an important issue in regions such as the Southern United States of America, especially for solanaceous crops. [ 13 ]
Root rot is a condition in which anoxic conditions in the soil or potting media around the roots of a plant cause them to rot. This occurs due to excessive standing water around the roots. [ 1 ] It is found in both indoor and outdoor plants, although it is more common in indoor plants due to overwatering, heavy potting media, or containers with ...
Root rot is a common disease of Florida green beans and can reduce crop yields there by up to 75% if untreated. [96] It was not until the 1950s that an effective fungicide was found to control root rot. Trials in Florida in the 1950s showed that applications of PCNB were able to reduce incidence to 3%. [98] PCNB is still the primary treatment ...
Here's a handy guide for diagnosing and treating your lawn's post-summer damage.
Black leg and Phoma root rot Leptosphaeria maculans Phoma lingam [anamorph] Black mold rot Rhizopus stolonifer: Black root (Aphanomyces) Aphanomyces raphani: Bottom rot, damping-off, headrot, seedling root rot, wire stem, and basal stem rot Ganoderma orbiforme Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Cercospora leaf spot
Butt rot is a disease of plants, mostly trees, caused by fungi. The fungus attacks the moist, poorly protected undersurface of tree trunk's thickest part (the "butt" above the root, as opposed to "top"), where the end of the stem makes contact with the soil. It may affect the roots as well, causing a disease known as root rot. It then moves up ...