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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 ...
These basidiospores are carried long distances by wind currents. They infect trees (usually conifers) through damage such as freshly cut stumps. Once on the stump the fungus colonizes and moves into the root via mycelium. Heterobasidion annosum moves short distances from the roots of an infected stump through root grafts with other trees. It ...
The fungus also causes many diseases like damping off, seedling blight, collar rot, stem rot, charcoal rot, basal stem rot, and root rot. [2] Although brown lesions may form on the hypocotyls or emerging seedlings, many symptoms occur during or after flowering, including grey discoloration of the stem and taproots, shredding of plant tissue in ...
Rhizoctonia solani root rot on corn roots, magnified 0.63X. Damping off can be prevented or controlled in several different ways. Sowing seeds in a sterilized growing medium can be effective, although fungal spores may still be introduced to the medium, either on the seeds themselves or after sowing (in water or on the wind).
Brown root rot is caused by fungi that live in the soil or on decaying plant material. The primary pathogen, Phellinus noxius, infects plants through their roots, especially if the roots are wounded or stressed. The disease spreads through: Root-to-root contact with infected plants. Contaminated soil or water. Plant debris left in the field.
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
Armillaria root rot is a fungal root rot caused by several different members of the genus Armillaria. The symptoms are variable depending on the host infected, ranging from stunted leaves to chlorotic needles and dieback of twigs and branches. However, all infected hosts display symptoms characteristic of being infected by a white rotting ...
To prevent further spread, regulate irrigation to avoid water stress, keep the root collar dry, control defoliating pathogens, remove stumps, fertilize adequately, avoid physical root damage and soil compaction, and don't plant trees that are especially susceptible to the disease in places where Armillaria mellea has been recorded. [22]