CROP MONITOR

2007/2008: Summer disease &nbsp;&nbsp;
2007/2008: Spring disease &nbsp;&nbsp;
2007/2008: Autumn disease &nbsp;&nbsp;

WINTER OILSEED RAPE COMMERCIAL CROP SURVEY

Oilseed rape is the third most important crop (after wheat and barley) in the UK in terms of the area grown and fungicide inputs. The incidence and severity of diseases varies from crop to crop and from season to season and are affected by agronomic practice and by the weather. A national survey of winter oilseed rape diseases has been undertaken annually since 1987 to monitor changes in incidence and severity of disease.

Approximately 100 crops are monitored for diseases at three times throughout the season; 25 plants from each crop are assessed in the autumn during leaf production, in the spring and in the summer during pod ripening.

National pest monitoring has now been incorporated within the CropMonitor project. Assessments are carried out on four occasions during the season; 25 plants from each crop are assessed in the autumn during leaf production and in the spring at stem extension. Two assessments are carried out in the summer on twenty plants in situ in each crop at the green-yellow bud/early flowering and late flowering growth stages. One hundred crops are included in the monitoring carried out in the autumn and fifty in the spring. A subset of between forty and sixty crops are monitored on the two occasions in summer.

Latest Results

Pest Assessments