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One must assume a genuine risk of BYDV even where Redigo Deter was used on the seed. This can be expected to provide six to eight weeks of cover post-emergence but high-pressure areas with early sowing might move with a spray inside of six weeks. If Deter dressed seed is only being planted now it might suffice for the season if the cold arrives soon.
Early sown crops also need more aggressive grass weed control. Most crops will be sprayed using actives like DFF (diflufenican), IPU (isoproturon) or PDM (pendimethalin), possibly in conjunction with Defy. Earlier sown crops might be sprayed with products like Alister, Firebird, Flight or Vigon. Certain problems like brome may even require a second treatment to get effective control.
BYDV control a major topic at Drummonds open evening
Tillage management: Good week sees planting progress
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