Live monitoring of fusarium on wheat (2008)
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Untreated plots of Robigus, at five sites, are assessed every two weeks for symptoms of Fusarium diseases.
Isolations are also carried out to identify the species present on each leaf layer.
Click on site name to view monitoring details Fusarium Head Blight 2008: Results from Survey of commercially grown winter wheat crops. The 2008 national survey is now finished and isolations to identify the species responsible for Fusarium head blight (FHB) symptoms have been completed. Results indicate that 64% of samples were infected by FHB pathogens (compared to 86% in 2007). As in 2007, Microdochium species (non-toxin producers) were responsible for the majority of symptoms (present in 44% of crops). Just over a quarter of the crops sampled were infected with Fusarium graminearum (toxin producer), a level similar to 2007. The worst affected regions, both in terms of crops affected and disease severity, were the South East, and East Midlands. Crops in the Yorkshire & Humberside, East and South West regions were also affected by F. graminearum. Low or zero levels of infection were found in the North East, North West, and West Midlands. Based on these results, the national risk from toxin contamination is likely to be similar to or slightly greater than last year. On a regional basis, crops in the South East region and East Midlands region are at greatest risk, followed by those in the East, South West, and Yorkshire & Humberside. Areas of low risk are the North East, North West, and West Midlands. However, the final toxin levels will be dependent on harvest conditions, with higher toxin levels likely if the harvest is delayed by wet weather. Latest news
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