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The addition of organic material to soil can be an effective alternative to environmentally unsafe chemical treatments for the control of plant parasitic nematodes. The effects of vermicompost and aqueous solutions of vermicompost (vermicompost tea) alone or mixed with urea on the development and survival of two potato-cyst nematodes, Globodera rostochiensis (pathotype Ro1) and G. pallida (pathotype Pa2) and on the growth parameters of the host potato plants were evaluated. Amendments to soil with these materials significantly decreased the number of cysts/100 g of soil, the number of eggs and juveniles/cyst and the number of eggs and juveniles/g of soil of both species in comparison with the untreated controls. The suppressive effect was significantly higher at the highest than the lowest treatment dose for all tested materials. G. rostochiensis was more sensitive than G. pallida to all tested materials. The aqueous solutions of vermicompost alone or in combination with urea were more effective than the solid vermicompost for controlling both species. Vermicompost and the vermicompost teas had positive effects on plant fresh stem weight and stem height. The application of vermicompost tea substantially decreased the amount of material needed compared to the solid vermicompost. These amendments are thus promising for the control of potato-cyst nematodes in sustainable agricultural systems. Acknowledgement: This study was supported by the VEGA scientific grant agency, grant No. 2/0079/13, the CNR/ASM Agreement (2015-2016) and the PhD program of N. Poiras.