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Volatile Components of Male Rectal Glands of the Melon Fly Dacus cucubitae COQUILLETT : Diptera : Tephritidae

1990; Springer Science+Business Media; Volume: 25; Issue: 1 Linguagem: Inglês

10.1303/aez.25.105

1347-605X

Ritsuo Nishida, K. H. Tan, Shozo Takahashi, Hiroshi Fukami,

Insect Pheromone Research and Control

Ethyl 4-hydroxybenzoate was identified as a major aromatic volatile in the rectal glands of Dacus cucurbitae males, together with two minor analogs, methyl and propyl 4-hhydroxy-benzoate. The quantity of ethyl ester was very low at early adult stage but increased with sexual maturation up to a level of 10 μg/male. 1, 3-Nonandiol was identified as one of the aliphatic components. It was also demonstrated that D. cucurbitae males which were artificially fed with cue-lure selectively accumulated its hydrolyzed derivative, 4-(4-hydroxy-phenyl)-2-butanone, in the rectal glands.