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


Regional Crop Report South East,   23 March 2007
Winter Wheat
Comment on current growth stages Field conditions
September and early October sown crops are generally at GS 30, with the most advanced crops around GS 31 (particularly if basal fertility is high) - take care not to confuse presence of basal internode with GS31. Leaf 4 1/3 - 2/3 emerged in these earlier sown crops - order of development as follows - Einstein (most advanced) >Robigus >Solstice >Alchemy >Claire. Tip of leaf 3 emerging on early sown Einstein and Robigus on fertile fields. Late October/early November sown crops are now at mid-tillering to GS29. Recent cold snap has purpled foliage of many wheat crops, slowing nodal development. Field conditions are mostly dry and firm now.
Main diseases Present Level and comment
Brown Rust Still common in all September sown crops of Alchemy, Claire and Solstice although drying up after colder weather.
Mildew Still very hard to find any active pustules and older leaves that were carrying infection now senescing.
Septoria tritici Lesions now obvious on older leaves of all September/early October sown wheats and with ongoing wet and mild conditions the level of Septoria inoculum is inevitably high.
Yellow Rust None seen.
Eyespot Some stem based browning can now be found in earlier sown second wheats in particular. Recent dry and breezy weather helping to slough-off older leaves and leaf sheaths, taking some infection pressure away.
Other None seen.
Main Pest problems Level and comment
Aphids  
Frit fly None seen.
Leatherjacket None seen.
Opomyza None seen.
Slugs None seen.
Wheat bulb fly None seen.
Wireworm No further damage seen.
Other Gout fly - some very high levels of infestation noted in a few locations (80-100% plants), primarily in fields located in sheltered valleys and also blocks of continuous wheat - affected plants have up to 2-3 gouted tillers present, with relatively weak remaining tillers - these crops will need early nitrogen.
Main weed problems Level and comment
Blackgrass Low levels of blackgrass (GS 21-29) can be found in some crops treated in late October/November.
Meadow grasses Control measures in place.
Rye grass Appears to be a significant flush in problem fields this autumn (at GS 10-13).
Bromes  
Cleavers Large flush present in some crops at cotyledon to 2 whorls.
Others Cranesbill becoming an increasing problem.

 
Regional Crop Report South East,   23 March 2007
Winter Barley
Comment on current growth stages Field conditions
Earliest sown crops now at GS 30+, with most crops still around GS 29-30. All crops have had first N+S applied now. Field conditions are mostly dry and firm now.
Main diseases Present Level and comment
Brown Rust Widespread, pustules can be found in all crops of Sequel/Boost in particular.
Mildew Mostly browned pustules can be found on lower leaves Sequel/Pearl.
Net-blotch Significant levels noted in crops of Sequel that follow barley.
Yellow Rust None seen.
Eyespot None seen.
Rhynchosporium Low levels can be found in thicker crops.
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 Low to moderate populations now present in some crops (GS 10-13).
Meadow grasses
Rye grass
Bromes
Cleavers
Others

 
Regional Crop Report South East,   23 March 2007
Winter Oilseed Rape
Comment on current growth stages Field conditions
All crops now extending and range from green bud to early yellow bud stages. All crops have had first N+S applied in last 2 weeks. Second N applications being made around yellow bud or as late as possible.
 Field conditions are mostly dry and firm now.
Main diseases Present Level and comment
Club root No further reports.
Downy Mildew None seen.
Light Leaf Spot None seen.
Phoma Crops retreated in December remain free from any re-infection.
Powdery Mildew None seen.
White Leaf Spot None seen.
Other None seen.
Main Pest problems Level and comment
Aphids None seen.
Flea beetle No further reports.
Leatherjacket None seen.
Slugs Crops beyond growth stages where damage can occur.
Other No further reports of damage.
Main weed problems Level and comment
Blackgrass  
Meadow grasses
Rye grass Heavy infestations in some fields.
Bromes
Cleavers
Others  





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

 
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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.