담배나방(Heliocoverpa assulta)와 파밤나방(Spodoptera exigua)유충에 대한 유기인계 살충제인 다이아지논과 담배의 산물인 니코틴의 영향을 조사하기 위하여 본 실험을 시행하였다. 다이아지논이 처리된 담배나방유충의 사망률은 파밤나방유충의 경우보다 훨씬 높았으며 니코틴 처리구에서는 이와 반대양상을 나타내었다. 담배나방유충 중장의 cytochrome P-450 monooxygenases (MFO) 활성은 다이아지논 처리구에 비해서 니코틴 처리구에서 더욱 높게 나타났다. 담배나방유충을 기주식물인 담배잎으로 사육하였을 때 다른 화합물과는 달리 대부분의 니코틴은 변화 없이 배설되었다.

The midge samples were undertaken at three streams, representing different surrounding environments, to investigate the contaminant exposure of midge. The content of heavy metals in midge collected in Singil stream were generally higher as a result of input to the industrial effluents with respect to other streams. Adsorption experiments were done to evaluate the possibility of removing contaminants from water with midge. Diazinon and heavy metals were contaminant target compounds in this study. The removal rate of diazinon in water by midge was 60-75%. In the case of Cu, the removal rate was reached around 90% at the lower initial concentration of 1.87 and 0.81 ppm rather than 4.25 ppm. The reduction of concentration of Cr and Cd according to the lapse of time was similar to the Cu, but their removal rates were shown 50% and 60-74%, respectively. The removal rate of Zn by midge represented relatively high level within the experimental condition. No change in concentration of Cr and As with time were occurred at all experimental conditions. It accounts for the fact that the reduction of Cr and As could not be achieved through the adsorption process, using midge.