CAJ | 학술논문

用叶片药膜法研究了阿维菌素抗性小菜蛾Plutella xylostella（L.）品系对常用药剂的交互抗性谱以及增效醚（PB）和磷酸三苯酯（TPP）的增效作用。小菜蛾对阿维菌素与高效氯氰菊酯、溴氰菊酯、氰戊菊酯和联苯菊酯等菊酯类药剂间具有比较低的交互抗性，对后者抗性为3～20倍，对阿维菌素的抗性为575.6倍；对氟虫脲和氟啶脲没有交互抗性。PB和TPP对阿维菌素分别增效8.2和5.5倍，说明小菜蛾对阿维菌素的抗性可能与多功能氧化酶（MFO）和羧酸酯酶有关。通过差光谱技术测定了阿维菌素抗性和敏感小菜蛾细胞色素P450的含量，抗性品系是敏感品系的1.38倍。
용협편약막법연구료아유균소항성소채아Plutella xylostella（L.）품계대상용약제적교호항성보이급증효미（PB）화린산삼분지（TPP）적증효작용。소채아대아유균소여고효록청국지、추청국지、청무국지화련분국지등국지류약제간구유비교저적교호항성，대후자항성위3～20배，대아유균소적항성위575.6배；대불충뇨화불정뇨몰유교호항성。PB화TPP대아유균소분별증효8.2화5.5배，설명소채아대아유균소적항성가능여다공능양화매（MFO）화최산지매유관。통과차광보기술측정료아유균소항성화민감소채아세포색소P450적함량，항성품계시민감품계적1.38배。
Synergism of abamectin(AVMs) by piperonyl butoxide (PB) and TPP in both AVMs-resistant(AV-R) and susceptible(XH-S) strains of diamondback moth ［DBM, Plutella oxylostella (L.)］ was investigated. Both PB and TPP increased the toxicity of AVMs to AV-R strain and the synergism ratios are 8.2- and 5.5-folds, respectively, but they all have no effect on the toxicity of AVMs to XH-S strain. It suggested that the high resistance to AVMs in DBM is correlated to carboxylesterase and mixed functional oxidase(MFO), which was verified by the comparison of cytochrome P450 content between these two strains. The cross-resistance of AVMs to pyrethroid insecticides and insect growth regulators was also studied in AVMs-selected strains. AVMs-selected strains possessed the low cross-resistance between four pyrethroid insecticides tested and abamectin, but no cross-resistance to two insect growth regulators, flufenoxuron and chlorfluazuron.