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Sugar–Acetic Acid–Ethanol–Water Mixture as a Potent Attractant for Trapping the Oriental Fruit Moth (Lepidoptera: Tortricidae) in Peach–Apple Mixed-Planting Orchards

Shandong Institute of Pomology, Tai’an, Shandong 271000, China
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Authors to whom correspondence should be addressed.
The first two authors contributed equally to this paper.
Plants 2019, 8(10), 401; https://doi.org/10.3390/plants8100401
Received: 20 September 2019 / Revised: 27 September 2019 / Accepted: 5 October 2019 / Published: 8 October 2019
(This article belongs to the Section Plant Protection)
Sugar–acetic acid–ethanol–water mixture (SAEWM) trapping has initially shown the potential efficacy for monitoring or trapping insects. It is unknown how SAEWM-baited traps affect field number of oriental fruit moth (OFM), Grapholita molesta (Busck) (Lepidoptera: Tortricidae), the female/male ratio trapped, and the type of natural-enemy insects captured. This study investigated changes in seasonal population dynamics and diurnal flight rhythm of OFM, the number and female/male ratio of OFM and the numbers of Coccinellidae and Chrysopidae trapped by SAEWM in peach–apple mixed-planting orchards. The SAEWM performed well in trapping OFM, most of which were adult females, with the maximum trapping at 2.5 m above ground. The daily trapping peak occurred between 18:00 and 20:00, during each continuous monitoring period, with another peak occurring at 4:00–8:00, after the second monitoring period (2–5 July). However, the use of SAEWM also resulted in the trapping of Coccinellidae and Chrysopidae, of which peak trapping time partially overlapped with the second and third peak trapping times of OFM. We suggest the cessation of SAEWM trapping during the peak activity time of Coccinellidae and Chrysopidae, or application of alternative attractive mixture that do not trap the natural enemy insects, in order to protect the ecological balance in the field. View Full-Text
Keywords: sugar–acetic acid–ethanol–water mixture (SAEWM); oriental fruit moth; trapping efficacy; female/male ratio; natural enemy insects; green pest control sugar–acetic acid–ethanol–water mixture (SAEWM); oriental fruit moth; trapping efficacy; female/male ratio; natural enemy insects; green pest control
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Zhai, H.; Yu, X.; Ma, Y.; Zhang, Y.; Wang, D. Sugar–Acetic Acid–Ethanol–Water Mixture as a Potent Attractant for Trapping the Oriental Fruit Moth (Lepidoptera: Tortricidae) in Peach–Apple Mixed-Planting Orchards. Plants 2019, 8, 401.

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