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Laminated root rot also known as yellow ring rot is caused by the fungal pathogen Phellinus weirii. Laminated root rot is one of the most damaging root disease amongst conifers in northwestern America and true firs , Douglas fir , Mountain hemlock , and Western hemlock are highly susceptible to infection with P. weirii .
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 ...
Phytophthora root rot Phytophthora spp. Pitted sap rot Trichaptum abietinum: Red-brown butt rot Phaeolus schweinitzii: Red ring rot Phellinus pini: Rhabdocline needle cast Rhabdocline pseudotsugae. Rhabdocline weirii. Rhizina root disease Rhizina undulata: Rose fomes rot Fomitopsis cajanderi: Rust-red stringy white rot Echinodontium tinctorium ...
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 ...
The stump (and tap root) that is left in the ground after a tree has fallen or has been cut is the primary source of fatwood, as the resin-impregnated heartwood becomes hard and rot-resistant after the tree has died. Wood from other locations can also be used, such as the joints where limbs intersect the trunk.
Similarly to apple trees, crown rots of strawberries caused by P. cactorum can be partially diagnosed by cutting the crown of the plant and observing brown vascular tissues, and root rots by brown or black stunted roots. [7] Leather rot of strawberry is an additional disease affecting strawberry plants, with P. cactorum being the causal agent ...
Rigidoporus lignosus (klotzsch) Imazeki, the causal agent of white root rot, was first reported on rubber in 1904 from Botanical Gardens, Singapore. [1] It belongs to the order Basidiomycete, and in the family Polyporaceae. The disease originates on roots and later spreads to collar region.
Stumps can grow a callus tissue over its cross section which prolongs longevity of the stump by protecting it from infection and insect damage. [4] A living stump which is capable of producing sprouts or cuttings is known as a stool , and is used in the coppicing method of woodland management .