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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.

Data Sheets on Quarantine Pests - Tilletia indica (PDF | 42 KB)
European and Mediterranean Plant Protection Organization.

Karnal Bunt (PDF | 1.1 MB)
Plant Health Australia.


Karnal Bunt
USDA. Animal and Plant Health Inspection Service.

Karnal Bunt (PDF | 385 KB)
Department for Environment, Food, and Rural Affairs (United Kingdom).

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


Karnal Bunt (Tiletia indica)
Ohio Department of Agriculture.

Karnal Bunt Disease
Texas Department of Agriculture.


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

Karnal Bunt: Questions and Answers (Jan 2003; PDF | 81 KB)
Kansas State University. Cooperative Extension Service.

Karnal Bunt in Texas Wheat (PDF | 58 KB)
Texas A&M University System. Texas Agricultural 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: Nov 18, 2015
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