CAJ | 학술논문

【背景】鱼藤酮和茶皂素均为典型的植物源药剂，而两者混配对棕榈害虫的防治效果还未见报道。【方法】采用室内毒力测定方法研究了鱼藤酮和茶皂素以不同比例混配对槟榔红脉穗螟的联合毒力。【结果】鱼藤酮和茶皂素对红脉穗螟3龄幼虫的LC50分别为19.06和35.07 mg·L-1。鱼藤酮和茶皂素以有效成分1∶1、5∶1、1∶2和1∶5混配后，对红脉穗螟均表现出增效作用。其中以1∶5混配处理组的共毒系数最高，达327.26；1∶2混配处理组次之，共毒系数为298.16。【结论与意义】鱼藤酮和茶皂素以合理比例混配，对红脉穗螟具有增效作用。
【배경】어등동화다조소균위전형적식물원약제，이량자혼배대종려해충적방치효과환미견보도。【방법】채용실내독력측정방법연구료어등동화다조소이불동비례혼배대빈랑홍맥수명적연합독력。【결과】어등동화다조소대홍맥수명3령유충적LC50분별위19.06화35.07 mg·L-1。어등동화다조소이유효성분1∶1、5∶1、1∶2화1∶5혼배후，대홍맥수명균표현출증효작용。기중이1∶5혼배처리조적공독계수최고，체327.26；1∶2혼배처리조차지，공독계수위298.16。【결론여의의】어등동화다조소이합리비례혼배，대홍맥수명구유증효작용。
Background]Rotenone and tea saponin are typical botanical pesticides, but we have no information about their combined effect on palm pests. [Method]The bio-assay method was used to detect the toxicity level and co-toxicity coefficient ( CTC) of rote-none and tea saponin on the palm pest, Tirathaba rufivena. [Result]The LC50 of rotenone and tea saponin on 3rd instar larvae of T. rufivena were 19.06 mg·L-1 and 35.07 mg·L-1 , respectively. The rotenone mixed with tea saponin at proportions of 1 ∶ 1, 5 ∶ 1, 1 ∶ 2 and 1 ∶ 5 all showed synergistic effects to T. rufivena. The highest synergism was observed at a mixture of rotenone ∶ tea sapo-nin at a ratio of 1 ∶ 5, with a CTC of 327.26, followed by a blend of 1 ∶ 2, with a CTC of 298.16. [Conclusion and significance]Mixed at reasonable proportions, rotenone and tea saponin could express synergistic effects to T. rufivena.