Annotation: According to our research, the effectiveness of the biological preparation «Bacticide» to combat blood-sucking insects is 80-95 %. The effectiveness of the application depends on the location of insects and weather conditions. According to the instructions, «Bacticide» is an environmentally friendly development, as the preparation does not contain chemical preservatives. «Bacticide» means has all the permits documentation, it is registered and allowed for use in the countries of the customs union.In the Pavlodar region and in the future it was decided to use the biological preparation «Bacticide» in the fight against the gnus