Possibilities for reducing the use of pesticides in arable farming
Common crop protection strategies in arable farming are increasingly losing their effect as resistance to grass, insects and fungi spreads in many intensive arable areas. This leads to rising costs and changes in production systems. At the same time, the benefits and dangers of plant protection are critically discussed in society. Alternatives to chemical crop protection such as mechanical weeding are already available but are usually associated with higher costs. Against this background, the project aims to find out how the use of pesticides can be reduced as efficiently as possible.
In other European countries, strict reduction targets for plant protection have been introduced which are to be achieved with the help of various political instruments such as taxes, quotas or agri-environmental programmes. However, the effectiveness of these instruments must be critically questioned. Against this background, this project aims to investigate how the use of plant protection products in Germany can be reduced as cost-effectively as possible. At the same time, it will be investigated what consequences this would have for the design of production systems in arable farming. Furthermore, it has to be clarified whether the existing policy instruments are suitable for implementing the reduction potentials that are efficient from the point of view of production technology or whether other approaches might be more suitable.
Based on literature reviews, a reduction of pesticide use does not necessarily lead to declining yields or reduced gross margins. On the contrary: in particular through a variety-individual management in the fungicide application, as well as a reduction in herbicidal application rates in combination with other agricultural measures such as the expansion of crop rotation, it can be seen that the economic efficiency can be increased. Likewise, adjusted production systems such as belt spraying in sugar beet can reduce the use of pesticides at constant costs per hectare.
8.2018 - 12.2021
Project status: ongoing