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You are here: Home / Microbes / Species Profiles / Karnal Bunt
Species Profiles

Karnal Bunt

Karnal Bunt symptoms - Invasive.orgScientific name: Tilletia indica Mitra (1931) (Bonde et al. 1997)

Common names: Karnal bunt, partial bunt

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Selected Resources

Native To: First discovered in India (Bonde et al. 1997)

Date of U.S. Introduction: First detected in the U.S. in 1996 (Bonde et al. 1997)

Means of Introduction: Unknown, possibly arrived from Mexico in shipments of contaminated grain (Marshall et al. 2003)

Impact: Fungal disease that infects wheat, reducing quality and yield (Bonde et al. 1997)

Current U.S. Distribution: Southwestern U.S.



Selected Resources:

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Invasive Species Compendium - Tilletia indica
CAB International.

Plantwise Technical Factsheet - Karnal Bunt of Wheat (Tilletia indica)
CABI. Plantwise Knowledge Bank.

EPPO Global Database - Tilletia indica
European and Mediterranean Plant Protection Organization.

Fact Sheet - Karnal Bunt (PDF | 1.1 MB)
Plant Health Australia.
See also: Grains Pest Fact Sheets for more fact sheets.

Karnal Bunt (PDF | 385 KB)
Department for Environment Food and Rural Affairs (United Kingdom).
See also: Pest and Disease Factsheets for more fact sheets.

TISI Inventory - Karnal Bunt
Texas State University System. Texas Invasive Species Institute.

Federal Government

Plant Pests and Diseases Program: Plant Disease - Karnal Bunt
USDA. Animal and Plant Health Inspection Service.

International Government

Karnal Bunt of Wheat Technical Manual
South Africa Department of Agriculture. Directorate of Plant Health and Quality.

State Government

Pest and Disease Alerts - Karnal Bunt Disease
Texas Department of Agriculture.


UC Pest Management Guidelines - Karnal Bunt of Wheat (Feb 2009)
University of California. Statewide Integrated Pest Management Program.

Karnal Bunt: Questions and Answers (Jan 2003)
Kansas State University. Cooperative Extension Service.

Karnal Bunt in Texas Wheat (PDF | 58 KB)
Texas A&M University System. Texas Agricultural Extension Service.
See also: Small Grains - Diseases for more fact sheets

Pacific Northwest Plant Disease Management Handbook - Wheat (Triticum aestivum)-Karnal Bunt (Partial Bunt)
Oregon State University. Extension Service.



Bonde, M.R., G.L. Peterson, N.W. Schaad, and J.L. Smilanick. 1997. Karnal bunt of wheat. Plant Disease 81(12):1370-1377.

Marshall, D., T.T. Work, and J.F. Cavey. 2003. Invasion pathways of Karnal bunt of wheat into the United States. Plant Disease 87(8):999-1003.

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Last Modified: Aug 22, 2018
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