The aim of the research was to analyse the costs of the integrated plant protection during the six year period in wheat, sugar beet and oilseed rape crops. The data analysed was collected from a large-scale farm located in wielkopolskie voivodeship. The simplified system of cultivation (zero-tillage) as well as the rules for the integrated production have been applied by the farm for 15 years. The following elements were subject of the analysis: expenditure on plant protection, the use of active substance of plant protection products per 1 ha of crops, calculated in weight units and monetary units and the costs of plan protection.