Thielaviopsis basicola is a fungal plant pathogen responsible for black root rot, a disease with a large host range that includes woody and herbaceous ornamentals, agronomic crops and vegetable crops such as petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce and tomato. Its symptoms, including chlorotic lower foliage, yellowing, stunting or wilting, can resemble a nutrient deficiency, but they result from decaying root systems marked by black lesions that begin reddish and darken as the disease progresses. These lesions are caused by chlamydospores, dark resting spores the fungus produces that contribute to its pathogenicity and give infected roots their blackened appearance.
Facts
Control Method Connections
Affects
Carrot, Crops Source Thielaviopsis basicola (Wikipedia)
Cotton, Crops Source Thielaviopsis basicola (Wikipedia)
Lettuce, Crops Source Thielaviopsis basicola (Wikipedia)
Tobacco, Crops Source Thielaviopsis basicola (Wikipedia)
Tomato, Crops Source Thielaviopsis basicola (Wikipedia)
Caused By Agent Kind
In the Other Atlases
Found In
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Source EPPO Global Database: Berkeleyomyces basicola (THIEBA) - DistributionDistributionQuote, Distribution
Belgium Present, widespread
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Source EPPO Global Database: Berkeleyomyces basicola (THIEBA) - DistributionDistributionQuote, Distribution
Congo, The Democratic Republic of the Present, widespread
Also in Geography Atlas: where this subject is found.
Source EPPO Global Database: Berkeleyomyces basicola (THIEBA) - DistributionDistributionQuote, Distribution
Egypt Present, widespread
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Source EPPO Global Database: Berkeleyomyces basicola (THIEBA) - DistributionDistributionQuote, Distribution
India Present, widespread
Also in Geography Atlas: where this subject is found.
Source EPPO Global Database: Berkeleyomyces basicola (THIEBA) - DistributionDistributionQuote, Distribution
New Zealand Present, widespread
Sources
1. Thielaviopsis basicola (Wikipedia)
lead description
Thielaviopsis basicola is a fungal plant pathogen responsible for black root rot, a disease with a large host range that includes woody and herbaceous ornamentals, agronomic crops and vegetable crops such as petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce and tomato.
Article body
it is important to practice proper cultural conditions such as maintaining proper temperatures, amount of nitrogen fertilizer, and pH of the soil to reduce stress of host plants and decrease susceptibility to disease
Affects: Tobacco, Article text
Examples of susceptible hosts include petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce, tomato, and others.
Affects: Cotton, Article text
Examples of susceptible hosts include petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce, tomato, and others.
Affects: Carrot, Article text
Examples of susceptible hosts include petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce, tomato, and others.
Affects: Lettuce, Article text
Examples of susceptible hosts include petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce, tomato, and others.
Affects: Tomato, Article text
Examples of susceptible hosts include petunia, pansy, poinsettia, tobacco, cotton, carrot, lettuce, tomato, and others.
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