Analysis of dead, single pustule stem rust pathogen samples (D-samples) using molecular diagnostic SNP assay at the USDA-ARS Cereals Disease Lab, Minnesota has detected a race TKTTF (“Digalu” race) genotype in Kenya for the first time. Five samples from 2014 … Continue reading
David Hodson
Stripe rust was detected on 18th Dec 2015 in Anandpur Sahib and Ropar districts, Punjab and subsequently in Hoshiarpur district. The variety affected was HD-2967. Following the first detection, the Indian Institute of Wheat and Barley Research (IIWBR) and other … Continue reading
Combined results from race analysis undertaken at several different labs indicate that five new variants in the Ug99 lineage were detected from samples collected in East Africa during 2013 or 2014. Probably most significant were the two new SrTmp variants … Continue reading
Mehran Patpour (Global Rust Reference Center in Denmark) and co-authors have just published details of the emergence and spread of virulence to SrTmp in the Ug99 race group in Africa. The note is now available as a First Look in … Continue reading
The following is extracted from the BGRI Newsletter Special Edition, 3rd April 2015: Kenyan Variety Robin Overcome by Two New Ug99 Variants A popular wheat cultivar, Robin, sustained severe damage in some farmers’ fields by stem rust in the 2014 … Continue reading
Following the confirmed detection of Ug99 (race TTKSK) in Egypt in 2014 (BGRI special newsletter report April 2015) increased vigilance is needed for stem rust in the eastern Mediterranean. Although no confirmed reports of race TTKSK have been obtained from … Continue reading
Favourable weather conditions for stripe rust are occurring across North Africa to South Asia. Cool, wet conditions across many parts of the region are producing a conducive environment for disease outbreaks. Aggressive races with virulence to Yr27 are known to … Continue reading
Following the recent release of the 2013 stripe rust report, the Global Rust Reference Center in Denmark has now just published the latest report detailing the results of race analysis for Puccinia striifromis samples submitted during the period January – … Continue reading
Indian media sources are reporting the first appearance of stripe rust in Punjab. According to a report in the Hindustan Times (read report here), stripe rust was detected on Jan 9th in Kharod village, Nawanshahr district. Stripe rust is also … Continue reading
Following the localized stem rust epidemics in Ethiopia on the cultivar “Digalu” in 2013/14 (see report 23rd Dec 2013); continued, severe stem rust outbreaks have been observed in the 2014/15 main season. Once again the popular cultivar “Digalu” has been … Continue reading