【摘要】 为开发腌肉和咸鱼害蝇的安全性杀卵剂,采用改进的浸卵法,进行了9种植物精油对大头金蝇的杀卵活性测定.结果表明:肉桂、丁香、八角茴香3种植物精油较为有效,它们的杀卵毒力(LC50)依次为0.428、1.605和2.489mg.ml-1,以肉桂油的毒力最强.通过GC/MC成分分析,从肉桂油检出22个成分,主成分桂皮醛占92.33%.合成桂皮醛(含量97.33%)的毒力为0.281mg.ml-1,略高于肉桂油,表明桂皮醛是肉桂油的主要杀卵活性成分,可替代肉桂油作为害蝇杀卵剂利用.更多还原

【Abstract】 To exploit safe ovicides against the flies that attack bacon and kipper,the ovicidal activity of 9 plant essential oils was investigated by a modified egg-dipping method.The results indicated that the essential oils from Cinnamomun cassia,Eugenia caryophyllata and Illicum verum had higher ovicidal activity,with their LC50 values being 0.428,1.605 and 2.489 mg·ml-1,respectively.Through GC/MS analysis,a total of 22 components were identified from C.cassia oil,among which,cinamaldehyde was the most predominant one,accounting for 92.33% of the total.The LC50 of synthesized cinamaldehyde(97.33%)was 0.281 mg·ml-1,being a little higher than the LC50 of C.cassia oil,suggesting that cinamaldehyde was the main ovicidal component of C.cassia oil and could replace the latter as an ovicide against harmful flies.更多还原