Establishment without Neonics

30-Sep-2014

DEKALB BEST PRACTICE GUIDE


 

OSR Establishment without Neonics

 

Ensuring the most effective oilseed rape establishment and early growth will be a particular challenge this autumn in the absence of neonicotinoid seed dressings.

 

The greater the early flea beetle threat the more important will be varieties with:

 

  • Vigorous establishment ability for the quickest emergence and best rooting.
  • Rapid leaf development for the greatest tolerance of autumn pest damage.  
  • Robust phoma resistance for the least check to early growth & development.  


Hybrids are generally more vigorous in their establishment than pure lines. But many hybrids are not fast enough in their autumn leaf development nor robust enough in their phoma resistance to minimise this season's extra establishment risk.

Extensive trials and farm experience show four current varieties stand out from the crowd in these crucial respects:

 

 

DK ExPower

DK Extrovert

DK Excellium

Excalibur

Vigorous Establishment Ability

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Rapid Leaf Development

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Robust Phoma Resistance

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Alongside variety choice, timely and accurate sowing into well-consolidated seedbeds with the good early nutritional and root development support will be especially important to counter the heightened pest threat. As will careful integration of pyrethroids into early herbicide and fungicide programmes, wherever necessary.

Practical advice on successful OSR establishment without neonics from several specialists is available at http://www.osrgrowersclub.dekalb.co.uk