East: Sugar beet weeds programme nearing completion

Despite a challenging season, I have been pleased by howeffective the herbicides in sugar beet crops have been this year. Modernformulations have proven their efficacy. As many beet fields have suffered with water logging, then a period ofdry weather trace element applications have made a positive contribution tocrop health, these will continue.

Mangold eggs are being found in beet crops, these are clusters of whiteeggs on the underside of the leaf.  If thelarvae enters the plant the only control option is a dimetheoate product.

Hopefully, orange blossom midge will not pose a problem thisyear and if it does varieties with resistance will show their worth.  My strategy for treatment targets feed wheatcrops where the number of adult midges exceed 1 midge per 3 ears, or 1 midgeper 6 ears in milling wheat crops. 

Ifthere is a need to spray with chlorpyrifos this should be done in a responsiblemanner.  All the guidelines in the ‘sayno to drift’ campaign need to be followed to preserve this key activeingredient and protect the environment.

Oakley looks appealing again, not only does it have orange blossom midge resistance, but looking at the Hutchinson national blackgrass centre trials today, it also competes well against blackgrass (when drilled at a high seed rate).

My winter wheat T3 programmes are now being planned. If septoria pressure remains high, and the disease is a threat due to high level on lower leaves I would consider another SDHI (only 2 permitted per crop).  

On my clean feed wheat crops, with good variety disease profiles tebuconazole, or prothioconazole mixes will be applied.  It is worth checking the mycotoxin risk assessment and preparing a plan.

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