A new system for under-vine cultivation (SIEGWALD HS 1200) was tested over a period of two years in four farms with organic viticulture and compared with their customary systems. The SIEGWALD system has well proved its worth. The total costs were comparable to those of other systems. All tractors met the requirements of the SIEGWALD system. Vine trunks were not injured, except in one vineyard. Negative consequences for the fauna on the soil surface and for predatory mites (Typhlodromus pyri) in the canopy were not found
