Preventive effect of fenothrin-Co₂ mixture gas against invasion of a printing factory by flying insects

Abstract

The 12 hours interval spray of the mixture of fenothrin and CO₂ gas to a next room of the vehicle entrance at 7:00 a.m. and p.m. was effective to prevent flying insects from invading to a printing factory.
The numbers of the flying insects captured by the light trap in indoor have been decreasing since treament of mixture gas. And the numbers of insects captured by the light trap with adhesive in next room of the treatment room on mixture gas was decreased one-tenth after treatment.