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The precision of insect number determination in forest litter using a method, in which the sample element comprised 10 plots of 0.5 m2 each, was compared with that of the method, in which the sample element consisted of one plot of 5 m2. Investigations were conducted in four pine stands aged 59-80 years. The number of cocoons of Diprioninae found in the litter was counted. It was found that the precision...