Demo Columbia root knot nematode

• You are growing potatoes in a 1:4 rotation.
• You had a field sampled with the Combi method in August, immediately after a winter wheat crop.
  Result Meloidogyne chitwoodi (Columbia root knot nematode) 50 larvae/100 cc on one of the parts of the sampled field.
• You wish to restrict expansion of the infestation as much as possible.
• You wish to grow ware potatoes in 2011 and 2015.
  
  

  Crops	Green manure crops
  Potatoes	Rye
  Sugar beet	Fodder radish
  Spring barley
  Maize
  Chicory
  Onions
  Tulip

• Which crop rotation is best at preventing expansion of the infestation? (NB: Little is until now known about the relationship between field infestation and the chance of the occurrence of symptoms in potato tubers. NemaDecide is at the moment unable to pronounce upon this).