Traps baited with pear ester and acetic acid attract both sexes of Hedya nubiferana (Lepidoptera: Tortricidae)

Jósvai, Júlia Katalin and Koczor, Sándor and Tóth, Miklós (2016) Traps baited with pear ester and acetic acid attract both sexes of Hedya nubiferana (Lepidoptera: Tortricidae). Journal of Applied Entomology, 140. pp. 81-90. ISSN 0931-2048 (print), 1439-0418 (online)

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Abstract

This study was initiated with the objective of studying field responses of the green budworm moth, Hedya nubiferana (Haworth) (Lepidoptera: Tor- tricidae), to pear ester [PE; ethyl ( E,Z )-2,4-decadienoate] and acetic acid (AA) with the aim of developing a lure attractive also for females. In the overwhelming majority of tests, traps baited with the PEAA lure (the com- bination of both PE and AA) caught more than traps baited with either of the constituents presented alone. PEAA lures were attractive to H. nubifer- ana no matter whether the two compounds were provided in separate dis- pensers or mixed together in a single one, and a large percentage (up to 71%) of trap catch consisted of females. Traps with PEAA lures caught (females plus males) on an average 30% of the catches in traps baited with the synthetic green budworm moth sex pheromone (only males). This suggested that the new PEAA lure had a trapping performance compara- ble with that of pheromone traps, which latter are used by farmers today. Consequently, the PEAA lure showed potential for future practical appli- cations as a female-targeted lure for H. nubiferana . To our knowledge, this is the first well-documented report on the attraction of PEAA lure for a tortricid species other than codling moth.

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