black root rot

black root rot

[′blak ′rüt ‚rät]
(plant pathology)
Any of several plant diseases characterized by dark lesions of the root.
A fungus disease of the apple caused by Xylaria mali.
A fungus disease of tobacco and other plants caused by Thielaviopsis basicola.
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References in periodicals archive ?
Similar host plant resistance research into Black root rot, Verticillium wilt, Fusarium wilt, whitefly and two spotted mites are also under development.
The severity of tobacco black root rot was reduced when soil was amended with phloroglucinol (Keel et al.
Pseudomonas as antagonists of plant pathogens in the rhizosphere, role of the antibiotic 2,4-diacetylphloroglucinol in the suppression of black root rot of tobacco.
R bunodes causes black root rot mainly in tropical woody hosts.
arcuata like most Rosellinia species causes black root rot disease, mainly in tropical and subtropical woody hosts.
But tests have shown that planting strawberries in these flexible tubes significantly reduced incidence of black root rot and increased yields 16- to 32-fold.
Black root rot incidence was increased 3-fold by sowing field pea, but was not significantly affected by wheat.
Additional keywords: cracking clay, minimum tillage, organic C, farming system, mycorrhiza, black root rot, gross margin, Haplustert, compaction.
Additional keywords: cracking clay, minimum tillage, soil organic C, farming system, mychorrhiza, black root rot, long-fallow disorder.
The objective of this study, therefore, was to quantify soil physical and chemical properties, and soil-borne disease incidence (usually black root rot in this site), under continuous and long-fallow cotton in an irrigated, grey, self-mulching Vertosol in eastern Australia, with a view to identifying soil factors other than AM which could contribute to cotton growth rate reductions.