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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.
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 ...
Red ring rot is common in North America. The pathogen Porodaedalea pini is widely spread in the temperate zone in the Northern Hemisphere. [4] It infects a wide range of coniferous trees, including jack pine, lodgepole pine, Sitka and white spruce, Douglas-fir, balsam and true fir, western hemlock, and tamarack.
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Phytophthora crown and root rot (sprinkler rot) Phytophthora cactorum. Pink mold rot Trichothecium roseum = Cephalothecium roseum. Powdery mildew Podosphaera leucotricha. Pythium dieback Pythium spp. Rhizopus rot Rhizopus stolonifer. Rust, American hawthorne Gymnosporangium globosum. Rust, Kern's pear Gymnosporangium kernianum. Rust, Pacific ...
Trichoderma ear rot and root rot Trichoderma viride = Trichoderma lignorum. Hypocrea sp. [teleomorph] White ear rot, root and stalk rot Stenocarpella maydis = Diplodia zeae: Yellow leaf blight Ascochyta ischaemi. Phyllosticta maydis Mycosphaerella zeae-maydis [teleomorph] Zonate leaf spot Gloeocercospora sorghi
Armillaria root rot Armillaria mellea: Black root rot Thielaviopsis basicola: Blackleg. Cutting rot Pythium sp. Botryosphaeria stem rot Botryosphaeria ribis: Botrytis blight Botrytis cinerea: Cottony stem rot Sclerotinia sclerotiorum: Damping-off Pythium sp. Rhizoctonia sp. Downy mildew Peronospora conglomerata: Fusarium cutting rot Fusarium sp.
Clavibacter michiganensis, also known as Ring Rot, is an unusual genus of phytopathogenic bacteria in that it is gram-positive and does not have a type three secretion system. All Clavibacter species and subspecies have a type B2γ cell wall crosslinked at a diaminobutyrate residue. Clavibacter is an aerobic bacterium with a coryneform morphology.