Integrated pest management is a combination of natural measures and the sparing use of chemical pesticides, which protect crops from diseases and pests. After determining the damage threshold, plant protection products are used in the tree nursery Lappen. The weed control takes place partly mechanically. The plants only get as much fertiliser as needed, this sustainable concept leads to a major reduction in the use of N‑fertilisation (max. 19 – 27 kg pure N per ha). The Lappen tree nursery avoids fertilisation with phosphorus completely. The tree nursery’s aim is to keep the leaching of nutrients from the soil – caused by fertilisation – to the lowest possible level, in order to protect the environment. In its endeavors in this area, Lappen analyses a large number of soil samples and, in terms of fertilisation and pest control, relies not only on its own expertise and long-standing know-how, but also seeks the assistance of external consultants. The leaching of nutrients through fertilisation is kept as low as possible. Through these measures, the plants at Lappen can ripen; they are robust and are less susceptible to secondary pests.
The desire for sustainability is also reflected in the selective irrigation system using tanker trailers, which leads to a reduction in water consumption. The modern system of drip irrigation is used on areas of up to 40 hectares.
The MPS certificate awarded to Lappen also shows that the company places particular attention on environment-friendly production processes, low consumption of resources and sustainability.