FIELD: agriculture. SUBSTANCE: the product in question has a foundation treated with an active ingredient to fight insects being available for passive evaporation. Active ingredient is chosen out of a group consisted of transflutrine, pralletrine, vaportrine, teflutrine, esbiotrine, DDVP and their combinations. The product is placed into air-moving medium, with the help of fastening means the treated foundation is fixed upon the means for air circulation in the place of contact with ventilator's blades, in area of air flow development. Thus, a foundation is subjected to the impact of air flow. Active ingredient is permitted to be passively evaporated into the air. EFFECT: more economical and efficient result. 13 cl, 1 dwg, 3 ex, 1 tbl
