有機化合物のハマベバエに対する誘引性

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A comprehensive range of organic compounds has been investigated as possible attractants for the seaweed fly, Coelopa (Fucomyia) frigida. The range involved various compounds in different chemical classes and each compound was separately evaluated quantitatively. The compounds which were found to attract significant numbers of the fly were (in the aliphatic halides) chloroform, methyl iodide, methylene chloride and propylene chloride; (in the aliphatic nitros) 2-nitropropane; (in the aromatic hydrocarbons) benzene; and (in the alicyclic hydrocarbons) cyclohexane. In particular we found that chloroform and benzene were the two most effective attractants. In the aliphatic classes, the attractiveness increased with decreasing boiling point of the compounds. In the aromatics, the attractiveness increased with decreasing carbon number. The aliphatic sulfides, nitro compounds, aldehydes, carboxylic acids, aromatic amino compounds, aromatic carboxylic acids, phenols, terpenes, and proteins were all found to be unattractive. The volatile compounds of the decayed laver were isolated and identified by the gas chromatographies, GC-FID, GC-FPD, and GC-MS. The analysis revealed the following constituents (in descending order of quantity); hydrogen sulfide, sulfur dioxide, methyl mercaptane, dimethyl sulfide, dimethyl disulfide, and traces of either two of the following three compounds; methyl-mercaptomethyldisulfide, mercapto-(2-mercaptoethyl) sulfide, and methylthiomethylmer-captosulfide. There was no relation between the volatile components of the decayed laver and the screened attractive compounds. We therefore consider that the seaweed fly must be attracted through its unknown taxis to certain organic compounds, which are unrelated to the volatile components of the decayed laver.
日本衛生動物学会の論文
1987-09-15

有機化合物のハマベバエに対する誘引性

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