RAPID ACCESS TO THE LATEST REGIONAL CROP PEST AND DISEASE LEVELS 		HGCA logo
 


Regional Crop Report South West,   04 May 2007
Winter Wheat
Comment on current growth stages Field conditions
Many crops in sheltered forward areas are at full flag leaf emergence. On the South Wales coast boots are swelling. Very early-drilled crops (pre mid September) have lost tillers and yield potential appears diminished as these crops may reach maturity with sub optimal ear numbers and will need grains the size of marrowfat peas to compensate. Late drilled crops with poor root systems are suffering from the sustained dry conditions, especially where the soil surface was capped over the wet winter. Fields on low moisture retentive soil will soon reach limiting soil moisture deficits as larger canopies transpire around 3mm water per day. We generally expect soils to return to field capacity in early April, which gives crops a head start. This year this did not happen.
Main diseases Present Level and comment
Brown Rust Contained by T1 triazole on all varieties. Inclusion of fenpropimorph certainly helped on Alchemy. Brown Rust has been most severe on stressed crops on thin soils.
Mildew Levels still very low even on very susceptible varieties.
Septoria tritici Levels not increasing with all spring emerged leaves totally clear.
Yellow Rust Outbreaks in Robigus now contained.
Eyespot Progression still slow although prevalence of R strain means we should not fully relax as rain in the near future may spark it off again.
Other None seen.
Main Pest problems Level and comment
Aphids None seen
Frit fly None seen
Leatherjacket No reports of further damage.
Opomyza None seen
Slugs None seen
Wheat bulb fly None seen
Wireworm None seen
Other None seen
Main weed problems Level and comment
Blackgrass No further reports.
Meadow grasses No further reports.
Rye grass No further reports.
Bromes  
Cleavers Emergence appears to be continuing.
Others  

 
Regional Crop Report South West,  4 May 2007
Winter Barley
Comment on current growth stages Field conditions
Many crops flowering and all treatments except pre harvest glyphosate now complete. Fields on low moisture retentive will soon reach limiting soil moisture deficits as larger canopies transpire around 3mm water per day. We generally expect soils to return to field capacity in early April, which gives crops a head start. This year this did not happen.
Main diseases Present Level and comment
Brown Rust None seen
Mildew None seen
Net-blotch None seen
Yellow Rust None seen
Eyespot None seen
Rhynchosporium None seen
Other None seen
Main Pest problems Level and comment
Aphids None seen
Leatherjacket None seen
Slugs None seen
Wireworm None seen
Other None seen
Main weed problems Level and comment
Blackgrass  
Meadow grasses
Rye grass
Bromes
Cleavers
Others

 
Regional Crop Report South West,  4 May 2007
Winter Oilseed Rape
Comment on current growth stages Field conditions
Several crops now looking green rather than yellow as flowering ends. No lodging seen anywhere. Crops generally shorter than average although have ended up taller than anticipated earlier.
  
Main diseases Present Level and comment
Club root No fresh reports.
Downy Mildew None seen
Light Leaf Spot None seen
Phoma None seen
Powdery Mildew None seen
White Leaf Spot None seen
Other Scelrotinia: Minimal risk in current dry conditions.
Main Pest problems Level and comment
Aphids None seen
Flea beetle None seen
Leatherjacket None seen
Slugs None seen
Other  
Main weed problems Level and comment
Blackgrass None seen
Meadow grasses None seen
Rye grass None seen
Bromes None seen
Cleavers None seen
Others





Crop Report compiled by Farming Online from reports received by members from the Association of Independent Crop Consultants

 
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This website was last updated on: 05/09/2008     © Crown Copyright Central Science Laboratory 2007
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All risk predictions published by CropMonitor are provided in good faith and are NOT a substitute for rigorous fieldwalking in combination with advice from BASIS qualified persons. CropMonitor accepts no liability for crop loss or damage resulting from the use of CropMonitor.