Abstract Residual film method was followed to analyze the toxicity of deltamethrin, essential oils (EOs) of Cymbopogon citratus and Cinnamonum camphora in separate and form of various combinations against LHR1 and LHR2 populations of fifth instar larvae of Trogoderma granarium. The cytotoxic potential of LC50s of both EOs, deltamethrin and their various combinations was as well investigated. The LHR2 population showed 23.73 fold deltamethrin resistance with respect to LHR1 population. Both EOs had high insecticidal activity than deltamethrin but C. citratus EO was less toxic than C. camphora EO against both populations. Based on strength of synergism and dose reduction index, the order of insecticidal activity of combinations in LHR1 population was: C. citratus EO: deltamethrin

中文翻译：

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溴氰菊酯、柠檬香茅精油和肉桂精油及其协同组合对储藏产品害虫 Trogoderma granarium (Everts) 的功效和细胞毒性潜力

摘要 采用残膜法分析溴氰菊酯、柠檬香茅精油(EOs) 单独和多种组合形式对斑皮螟五龄幼虫LHR1 和LHR2 种群的毒性。还研究了 EO、溴氰菊酯及其各种组合的 LC50 的细胞毒性潜力。相对于 LHR1 群体，LHR2 群体表现出 23.73 倍的溴氰菊酯抗性。两种 EO 的杀虫活性都比溴氰菊酯高，但柑橘 EO 对这两个种群的毒性都低于樟脑 EO。根据增效强度和剂量减少指数，LHR1群体中组合杀虫活性的顺序为：柑橘属植物EO：溴氰菊酯