Good control can normally be achieved by applying a systemic and persistent aphicide to susceptible varieties as soon as aphids are seen in the crop. However, some reduction in infection can be obtained by applying certain pyrethroid aphicides that have a repellent activity that discourages aphids from feeding on the crop. Repeat at 14 day intervals up to mid August or three weeks before burning down date, whichever is the earliest. Lambda-cyhalothrin and pirimicarb for example, Dovetail. In susceptible crops, unnecessary movements of people and machinery should be avoided in order to reduce the risk of spreading the disease.
Planting nears completion.
Early crop prices have remained strong this week. Maincrop demand is slow and prices remain under pressure. Weekly 155.23 down 1.31 on week. However with early crops being later than usual old maincrop is enjoying an extended season. Having finished planting growers are keen to clear stores as in many cases material is showing signs of seasonal quality deterioration.