Winter wheat: Crops at the thirteen monitoring sites are reaching flag leaf emergence (GS37-39). Septoria is the only disease present at all sites, levels tending to be lower in the east. Amounts of rainfall continue to be low and the current septoria risk is not expected to increase imminently. Yellow rust has been recorded at 7 sites so far, and though severe at Caythorpe and increasing at Boxworth is now absent from 3 previous sites. Oakley and Robigus are the most severely affected. Brown rust continues to be absent from crops in the monitoring network but current hot weather may increase risk. Mildew incidence is regionalised with only 4 sites affected (all in the West Midlands). Risk of all diseases except brown rust will remain low while the hot, dry weather continues.
Winter oilseed rape: Levels of light leaf spot remain low with the disease mainly evident in the south east. The extended flowering period has increased the period of susceptibility to sclerotinia and temperatures are now favourable for spore production. However, the current dry weather will ameliorate risk due to reduced petal sticking.
Most crops within the wheat live monitoring network have reached or passed GS31 and weekly updates will be available from all sites from now on. Reporting of fusarium disease development will also start shortly. Septoria continues to be the most widespread and obvious disease in the network with levels in the untreated crops typically moderate to severe in the north and west and slight to moderate in the east. Yellow rust has been recorded at three sites (two in the east and one in the west), but only in Oakley, which is very susceptible. There are no reports of brown rust in the Live Monitoring crops and no significant reports of the disease on farm. Mildew is present at three sites but levels do not appear to be increasing significantly. For more details log on to the website at www.cropmonitor.co.uk
Live-monitoring for 2010 now underway.
There are 12 sites being monitored, each with up to 14 varieties. Disease observations are being undertaken as the crops reach GS30 - the live-monitoring pages will be updated as information is received.
To view 2010 live-monitoring click here.
09/03/2010 - Septoria risk prediction for 2010
A prediction for septoria risk, based on winter weather is now available at: https://secure.fera.defra.gov.uk/cropmonitor/wwheat/risktools/septoria/EarlyWarning.cfm
This confirms that winter conditions have been relatively unfavourable for disease development.
The prediction will be updated through-out the season.
05/01/2010 - Latest CropMonitor reports and services
Summary reports from the Defra-funded national surveys of winter wheat (www.cropmonitor.co.uk/wwheat/surveys/highlight2009.cfm) and winter oilseed rape (www.cropmonitor.co.uk/wosr/surveys/osr_highlights2009.cfm) undertaken in 2009 are now available on the CropMonitor website. Live monitoring of wheat crops will begin again in March 2010 using an increased number of trial sites and varieties. More details will follow.