각종깨스농도하 Cimex Lectularious의 치사양상에 과한 실험성적

Abstract

In view of speculation that the current tendeney cf decrease in the population of the Cimex lectularius in general Korean residences since the wide spread use of coal briquettes might be due to the effect of the briquette gas, the authors initiated this experiment to confirm the effects of various component of coal briquette gas. As a test gas component, 502 CO, the briquette and nitrogen gases were employed. The results ean be outlined as follows: 1. 502 gas demonstrated a markedly effective insecticidal action towards Cimex lectularius. 2. CO gas also proved to be effectively insecticidal by high concentrations and weaker in action than that of 502 gas, being suggestive of feasibility of practical use. 3. The briquette gas showed far stronger insecticidal effects than 502 and COogases even with lower concentrations of 502 gas and CO gas contents. 4. When 502 and CO gases were combined, it did not show any synergistical effect. 5. The survival of Cimex lectularius was influenced by the low oxygen tension. 6. There should be more exploration on the obviously strong insecticidal action of the briquetta gas associated with the clarification of physico-chemical characteristics of briquette gas.