본 연구는 Group A (Permethrine.Phthalthrine), B(Permethrin.Furamethrine) 및 C(Phthalthrine.Dichlorvos)를 공시 살충제로 하였으며, P.B.O., MGK-264 및 S-421를 협력제로 각각 선택한 후, 그 첨가 비율에 따라 Blattella G.와 Musca D.에 대한 살충효과를 비교 실험하였다. 가정용 살충제로서 유효성을 참작하여 Knock-down rate($KT_{50},;KT_{90}$)와 누적 Motraility(percent/hrs)를 측정한 결과 공시살충제 A, B, C의 각 군에 협력제를 첨가한 시제품의 경우 살충효과가 크게 증가되었고, 첨가한 협력제 중 P.B.O의 살충효과가 가장 크게 나타났으며, 다음은 S-421>MGK-264의 순 이었다. 첨가비율에 대해서는 3종류의 첨가제모두에서 $1:5{geq}1:4>1.3$의 순으로 증가하여 살충효과는 협력제의 농도에 따라 비례함을 알 수 있었다. 또한 시간 경과에 따른 Mortaility(percent) 역시 $KT_{50};또는;KT_{90}$과 유사함에 따라 Knock-down rate가 그 효능을 증명해 주었다.
Comparative insecticidal efficiency between compounded pyrethroids and its preparations cooperated with several synergists was studied. As main components, Group A contained Permethrine.Phthalthrine, Group B contained Permethrine.Furameth rine and Group C contained Phthalthrine.Dichlorvos. As synergists Piperonyl Butoxide (P.B.O.), N-Octylbicycloheptene dicarboximide (MGK-264), Octachlorodipropylether (8-421) was cooperated in each group. These preparations was treated to either Blattella G. or Musca D. for comparing about insecticidal efficiency[Knock-down rate ($KT_{50},;KT_{90}$) and cumulative mortaility(percent/hrs)]. When the synergists was added to each Group, the insecticidal efficiency was improved. The most potent synergists was P.B.O. and the potency was decreased in the rank order of S-421>MGK-264. The more the concentration of synergists was increased, the more the insecticidal efficiency was improved. The rank order was $1:5{geq}1:4>1.3$ in all three groups. The mortality (percent) according to time was similar to either $KT_{50};or;KT_{90}$. Knock-down rate was appropriate parameter for the indicator about potency.
