Inhibition of High effect cypermethrin on Ca-ATPase of Blattella germanica

  Objective   To more perfectly undestand the operational mechanisms of high effect cyper methrin by researching the dosage effect and the time effect between high effect cypermethr in and Ca-ATP_ase activities of Blattella germanica.

  Methods   Quantitative high effect cypermethr in of different concentration was sprayed upon the method of GB 13917.1-13917.8-92 for insecticide registered testing indoo reffect.The activities of Ca-ATP_ase were determined by using ATP_ase Kit.

  Results   Inhibition of high effect cyper methrin on Ca-ATP_ase activities of Blattella germanica showed concentration gradient effectin 48 hours.The results showed the correlation of concentration of high effect cypermethr in and inhibiting time effect on Ca-ATP_ase activities of Blattella germanica in 144 hours and death rate of Blattella germanica in 72 hours was positive relationship.

  Conclusion   Ca-ATP_ase is one of the targets of high effect cypermethrin.Because of sensitivity decrease of Na-K-ATP_ase, tar get resistance may be one of the important resistant mechanisms to high effect cypermethrin.