In order to achieve high yield with high quality a controlled effort with plant protection products is required, an important tool for keeping the crop free from diseases that both decrease yield and lower the payment-based level of the harvest at delivery as well as improves quality storage of the harvest. To obtain high harvest require, among other things, the ability to fight existing plant pests. The chemical plant protection products should be used in the best possible way, like all agricultural inputs, i.e. contributing to a sustainable agriculture and, as little as possible, affect health and the environment.
Without field trials, we would not have answers to many questions in the area of plant protection, questions like: When is it necessary to start treatment of a pest? What is the pest’s treatment threshold? To what extent are precautionary measures? How is IPM achieved in a cost effective way? At which time and with what dose should the crop be treated?