Data for: Effects of insecticide treatment against blue stem weevil (Ceutorhynchus sulcicollis) and cabbage stem weevil (C. pallidactylus) on crop injury and yield in winter oilseed rape (Brassica napus)

We conducted five field experiments in two cropping seasons, where we tested pyrethroid insecticide application in autumn targeting Ceutorhynchus sulcicollis, in spring targeting C. pallidactylus, as well as combined applications in autumn and spring targeting both species. We evaluated stem injury, emergence of the new generation of weevils and crop yield and oil content. The dataset contains stem weevil injury (184 rows), pod injury (92 rows), weevil emergence (92 rows) and yield data (72 data rows). The Swedish Board of Agriculture (Jordbruksverket) has monitored insects in the field locations and contributed to data collection concerning the insects and their injuries to the crop. The Rural Economy and Agricultural Societies (Hushållningssällskapet) has managed and harvested the experiements, and provided yield data. More information about the data can be found in the readme.txt. file.