engleski

Response of horse flies (Diptera, Tabanidae) to different olfactory attractants

The attraction of female horse flies to unbaited and single baited Malaise traps using 1-octen-3-ol, acetone and ammonium hydroxide was studied in Eastern Croatia. Horse flies were collected in significantly higher numbers in 1-octen-3-ol baited traps than in traps baited with acetone, ammonium hydroxide or traps without these substances. The number of females of Haematopota pluvialis, Tabanus bromius, Tabanus maculicornis and Chrysops relictus collected from 1-octen-3-ol baited Malaise traps and traps with other attractants differed significantly compared with controls. Females of Hybomitra bimaculata were also collected more frequently in 1-octen-3-ol baited Malaise traps than in traps with acetone but this difference was not significant. Finally, the octenol baited Malaise traps collected 21 times more horse flies than unbaited traps, while acetone and ammonium hydroxide baited traps collected eight and four times as many flies, respectively than unbaited traps. Octenol appeared to be a very effective attractant for horse flies in Eastern Croatia.

Tabanidae; attractant; Malaise traps; Croatia

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