FIELD: biotechnology, agriculture, insecticides. SUBSTANCE: invention relates to agents used for plant protection, production of insecticide preparations. Liquid insecticide preparation has spore-crystalline complex of Bac. thuringiensis var. kurstaki in the amount 1.5-2.5 x 1010 spores and also, %: sodium chloride, 0.4-0.5; glycerol, 5.0-10.0; liquid petroleum paraffin, 16.5-24; Twin, 1.5-2.5; coniferous perfume, 0.1-0.2; household soap, 0.3-0.5; neonol, 1.7-2.3 and water up to 100%. Effectiveness of the preparation against Siberian gypsy moth caterpillars of 5-6 instars is 80-100%. Preparation can be used for control of gypsy moth, cabbage and turnip pierids, cabbage moth. Consumption of preparation is 0.5 l/ha, period of protective effect after a single treatment is above 20 days. EFFECT: enhanced effectiveness of insecticide preparation. 2 tbl
