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Tilletia indica (karnal bunt of wheat )
Tilletia indica
karnal bunt of wheat
Neovossia indica
India, Pakistan, Nepal, Iran, Iraq, Syria, Turkey, Lebanon, Afghanistan, Mexico, Kenya, South Africa, Brazil
Isolated outbreaks in SW USA: AZ, NM, TX, CA
2023-08-21
fungus
China
Restricted to wheat Triticum spp and Triticale spp
NEOVIN
Regulated pest in many countries, including the USA. The pathogen has been eradicated from NM, TX and CA.
1 Known Hosts
Triticum aestivum
wheat
Yes
NEOVIN-1, NEOVIN-2, NEOVIN-7
No direct evidence of seed transmission. Teliospores primarily external.
Yes
Visual examination, Seed wash, Size selective sieving, PCR
Size selective sieving most commonly used and accepted in US and EU.
Size selective sieving
NEOVIN-1, NEOVIN-2, NEOVIN-3
Carboxin + thiram and Chlorothalonil (Goates, PC 2015); Disinfectants; Tri-X, SDS and Tween 20, Gupta, et. al. 2003. Hot Water Soaks (Beniwal, et.al. 2000)
NEOVIN-1, NEOVIN-6, NEOVIN-7, NEOVIN-4
NEOVIN-1
Tilletia indica In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc."
NEOVIN-2
Peterson GL, Bonde MR, Phillips JG, 2000. Size-selective sieving for detecting teliospores ofTilletia indica in wheat seed samples. Plant Disease 84:999-1007
NEOVIN-7
Gupta V, et. al. 2003. Detergent washing technique for the efficient extraction of teliospores of Tilletia indica from contaminated wheat seeds. Seed Science and Technology 31:95-101
NEOVIN-3
Inman, A, et. al. 2008 Survival of Tilletia indica teliospores under European soil conditions. Plant Pathology 57:290-300
NEOVIN-6
Beniwal MS, Pankaj Chawla, Rajender Singh, Chawla P, Singh R, 2000. Effect of soaking of bunted seeds in water on teliospore germination of Neovossia indica. Indian-Phytopathology 53:219-220.
NEOVIN-4
Goates, B.. 2015 Personal Communication. Univeristy of Idaho Moscow, ID USA
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