A fungal disease (Tilletia indica) of wheat and triticale that partially replaces infected kernels with a dark, fishy smelling fungal mass, first described near Karnal, India in 1931. It causes only modest yield loss directly, but because infected grain is unmarketable and the disease is subject to strict quarantine in many importing countries, its detection in a region can trigger significant trade restrictions.
Facts
Classification
Quarantine StatusQuarantine Pest (ISPM 5) 1 Control Method Control Method Connections
Affects
Source Karnal Bunt (Wikipedia)
Associated With
Wheat, Crops Karnal bunt, named for Karnal, India, where it was first described, is a quarantine-significant fungal disease of wheat grain.
Caused By Agent Kind
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Originated In
Also in Geography Atlas: where this subject originated.
Found In
Also in Geography Atlas: where this subject is found.
Source Karnal Bunt (Wikipedia)Article textQuote, Article text
Since then, the disease has been reported in all major wheat-growing states of India, Pakistan, Afghanistan, Mexico, and certain areas of the Southwestern United States such as New Mexico, Arizona, and parts of Texas.
Also in Geography Atlas: where this subject is found.
Source Karnal Bunt (Wikipedia)Article textQuote, Article text
Since then, the disease has been reported in all major wheat-growing states of India, Pakistan, Afghanistan, Mexico, and certain areas of the Southwestern United States such as New Mexico, Arizona, and parts of Texas.
Also in Geography Atlas: where this subject is found.
Source Karnal Bunt (Wikipedia)Article textQuote, Article text
Since then, the disease has been reported in all major wheat-growing states of India, Pakistan, Afghanistan, Mexico, and certain areas of the Southwestern United States such as New Mexico, Arizona, and parts of Texas.
Also in Geography Atlas: where this subject is found.
Source Karnal Bunt (Wikipedia)Article textQuote, Article text
Since then, the disease has been reported in all major wheat-growing states of India, Pakistan, Afghanistan, Mexico, and certain areas of the Southwestern United States such as New Mexico, Arizona, and parts of Texas.
Also in Geography Atlas: where this subject is found.
Source Karnal Bunt (Wikipedia)Article textQuote, Article text
Since then, the disease has been reported in all major wheat-growing states of India, Pakistan, Afghanistan, Mexico, and certain areas of the Southwestern United States such as New Mexico, Arizona, and parts of Texas.
Sources
1. Karnal Bunt (Wikipedia)
Wikimedia FoundationOpening definition paragraph
Karnal bunt is a fungal disease of wheat, durum wheat, and triticale. The smut fungus Tilletia indica, a basidiomycete, invades the kernels and obtains nutrients from the endosperm, leaving behind waste products with a disagreeable odor that makes bunted kernels too unpalatable for use in flour or pasta.
lead description
A fungal disease (Tilletia indica) of wheat and triticale that partially replaces infected kernels with a dark, fishy smelling fungal mass, first described near Karnal, India in 1931.
lead description (quarantine-status)
It causes only modest yield loss directly, but because infected grain is unmarketable and the disease is subject to strict quarantine in many importing countries, its detection in a region can trigger significant trade restrictions.
Article text
Several chemical control methods exist for Karnal bunt of wheat, but much work remains to be done in identifying resistant host varieties.
Article text, control method
Other cultural controls such as crop-rotation may be practical as the planting of non-host species for several years may reduce the number of teliospores in given field significantly.
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