Preparatoirs for potatoes in organic farming

Summary

The aim of this experiment was to try alternative methods of regulation of Colorado beetle (Leptinotarsa decemlineata) and late blight (Phytophthora infestans) (the biggest harmfull organisms of potatoes) and production of the good-class of the biopotatoes.
Preparation Neem-Azal showed trend of the lower larvae occurence. Combination of the cupric fungicide with preparation PRP-EBV and vermicompost decreased tops-attack by late blight. The statistically lowest production was under the scaffold net. There were not found significant differences in production by using vitality- strengthening preparation.