In the years 2008-2010, 64 samples of plant material derived from farms in the north-eastern Poland were tested towards proper application of plant protection products (PPP) and food safety. It was found that 28% of pesticide treatments were carried out against recommendations of pesticide producers. The average consumption of pesticides, calculated in kg of active substance·ha^-1, ranged from 0.12-2.57. The costs of conducted treatments based on the prices of PPPs ranged from 67-574 PLN·ha^-1. Cultivation of winter rape was characterized by the highest level of pesticide use and the highest price of treatments. In the tested samples no risk of pesticide residues to human and animal health was found.

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