Pest and virus control in winter oilseed rape in northern Europe using a clothianidin-based seed treatment

摘要

To meet the challenges of more severe and diverse pest pressures in establishing oilseed rape crops, a new clothianidin + beta-cyfluthrin seed treatment, applied at 5g + Ig a.i. per kg seed, has been developed for use in northern Europe. Results demonstrate that the clothianidin-based treatment gives enhanced crop establishment and leaf protection against damage caused by adult cabbage stem flea beetle. In addition, the seed treatment gives useful reduction in damage caused by the larvae of turnip sawfly and cabbage root fly. Very good control of peach potato aphid is achieved, resulting in substantial reductions in the levels of turnip yellows virus in crops that were not subsequently re-infected by early spring aphid migrations.