Draw a circle of Observations on food, pupation and exit from the pupae of butterflies in cages that are easy to make a wire frame, covered with gauze. Check the log of observations outbreak Zhigalko flies, horse flies. Watch the swarming ants: black meadow (La-sius niger L.), a large red wood which is building anthills of coniferous needles or small fragments of branches (Formica rufa L.). Mark the beginning and end of this phenomenon in each of these species. Record the time of appearance of aphids: cabbage, black cherry and other developing on cultivated plants. Mark outbreaks of other pests in your area, the time of their appearance and disappearance, the greatest number, methods of struggle; describe the nature seen in the natural enemies of these pests.
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