RAPID ACCESS TO THE LATEST REGIONAL CROP PEST AND DISEASE LEVELS
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Regional Crop Report East Midlands,   20 April 2007
Winter Wheat
Comment on current growth stages Field conditions
Forward crops have leaf 3 well emerged. Late crops have tip of leaf 3 showing and very late crops have leaf 4 full out. In some cases dry weather is holding stem growth back with leaf 3 appearing at leaf 4 height, and consequently a rethink on 2nd split of growth regulators. Many crops being regulated by the dry but they will grow rapidly when it rains meaning a late growth regulator may be needed. Very dry now with soils showing heavy cracking. Lighter soils drying out in top inch or so. In 26 days we have had 0.75 mm rain. Crops which had early N due to have first half of main split now but as nitrogen applied 2 weeks ago is still on the ground no one is in a rush to apply more. A lot of N not yet taken up. Crops which were forward and waited until early April for their first N have yet to take it up. Some crops on light land sowing N stress and paling. Manganese is going on many crops at T1 as uptake is low at the moment.
Main diseases Present Level and comment
Brown Rust Traces on Alchemy, Cordiale and Einstein.
Mildew Levels very low with little or none seen as drying weather keeps it under control.
Septoria tritici As before top leaves clear - not really Septoria weather in spite of dewy nights.
Yellow Rust Now being found on older leaves of Robigus although top leaves clear even where just chlorothalonoil at T0. T1 going on now or in one or two cases a split T1 in case weather turns as predicted.
Eyespot In Solstice and Malacca at generally low levels but these crops getting treated in case of wet May and bearing quality requirements in mind. Many later crops clear, allowing a low cost T1.
Other  
Main Pest problems Level and comment
Aphids None seen
Frit fly None seen
Leatherjacket None seen
Opomyza None seen
Slugs Slugs grazing top leaves but not damaging. A lot of slime trails about in spite of the dry.
Wheat bulb fly None seen
Wireworm None seen
Other  
Main weed problems Level and comment
Blackgrass Pre-Christmas herbicide has worked well.
Meadow grasses Control treatments where necessary have been carried out.
Rye grass Now showing in many cases as annoying stands rather than patches.
Bromes Control measures being left until the spring.
Cleavers Apart from one or two crops many have low levels, which will be mopped up at T2.
Others  

 
Regional Crop Report East Midlands,  20 April 2007
Winter Barley
Comment on current growth stages Field conditions
Leaf 2 appearing on many crops with flag not far away - far too early as it's a long way to harvest! Crops not excessively tall as dry weather holds stem growth back. In the West, light land barley's finally starting to green up and grow this week. Majority of T1 sprays applied but some going on this week because crop was late to grow away could be that only one fungicide application needed where the crop has shot and pushed flag leaf out. Odd crop with awns emerging. Crops remarkably free of disease on the whole. Very dry now with soils showing heavy cracking. Lighter soils drying out in top inch or so. In 26 days we have had 0.75 mm rain. Crops which had early N due to have first half of main split now but as nitrogen applied 2 weeks ago is still on the ground no one is in a rush to apply more. A lot of N not yet taken up. Crops which were forward and waited until early April for their first N have yet to take it up. Some crops on light land sowing N stress and paling. Manganese is going on many crops at T1 as uptake is low at the moment.
Main diseases Present Level and comment
Brown Rust None seen
Mildew No new pustules, some signs on Saffron on light land.
Net-blotch New growth remains clean
Yellow Rust None seen
Eyespot None seen
Rhynchosporium Veery low levels.
Other BYDV patches starting to appear in early sown crops that had only one autumn aphicide.
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 Not a problem where barley this year so no pre-ems.
Meadow grasses None seen
Rye grass
Bromes
Cleavers
Others

 
Regional Crop Report East Midlands,  20 April 2007
Winter Oilseed Rape
Comment on current growth stages Field conditions
Crops at 10-20 pods formed on the whole and look well. Sclerotinia, with weather predicted to break high risk crops getting sclerotinia control with low risk crops getting just a broad spectrum fungicide. Very dry now with soils showing heavy cracking. Lighter soils drying out in top inch or so. In 26 days we have had 0.75 mm rain.
Main diseases Present Level and comment
Club root No further reports.
Downy Mildew No longer of concern.
Light Leaf Spot None seen
Phoma None seen
Powdery Mildew None seen
White Leaf Spot None seen
Other None seen
Main Pest problems Level and comment
Aphids None seen
Flea beetle None seen
Leatherjacket None seen
Slugs None seen
Other Seed Weevil numbers low considering the warm weather. Just odd one found on headlands.
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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