11 October 2018 Evaluation of Protein Bait Manufactured From Brewery Yeast Waste for Controlling Drosophila suzukii (Diptera: Drosophilidae)
Pumo Cai, Chuandong Yi, Qiwen Zhang, Hehe Zhang, Jia Lin, Xuesen Song, Jianquan Yang, Bo Wang, Qinge Ji, Jiahua Chen
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Abstract

We evaluated a protein bait based on an enzymatically hydrolyzed beer yeast and two widely used baits including a sugar + vinegar + wine mixture and apple cider vinegar for their ability to trap Drosophila suzukii (Matsumura) in the laboratory and outdoors. The protein bait was a more attractive lure than the other tested baits, with the protein bait capturing significantly more female and male adults at different developmental stages than the other baits. Furthermore, the protein bait with 20% vinegar attracted significantly more adult flies than the other baits, and the protein bait without dilution attracted the most adults. Except for the addition of 0.05% spinosad, increased insecticide content in protein bait reduced its attractiveness to adult flies. Moreover, we found that D. suzukii has a bimodal activity pattern in visiting protein bait, where maximum activity occurs during 8:00–10:00 a.m. and 14:00–16:00 p.m. The antennae and maxillary palpi played an important role in detecting the chemicals emitted from the protein bait, as the number of intact flies that responded to new protein bait was significantly higher than the number of flies without antennae that responded, but almost 15% of defective flies still responded to the protein bait. Our results suggested that the protein bait based on spent brewery yeast could be a promising alternative for D. suzukii population monitoring and for managing this pest when combined with bioinsecticides, providing guidance for using this protein bait as a component of integrated pest management.

© The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Pumo Cai, Chuandong Yi, Qiwen Zhang, Hehe Zhang, Jia Lin, Xuesen Song, Jianquan Yang, Bo Wang, Qinge Ji, and Jiahua Chen "Evaluation of Protein Bait Manufactured From Brewery Yeast Waste for Controlling Drosophila suzukii (Diptera: Drosophilidae)," Journal of Economic Entomology 112(1), 226-235, (11 October 2018). https://doi.org/10.1093/jee/toy304
Received: 30 July 2018; Accepted: 9 September 2018; Published: 11 October 2018
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KEYWORDS
bioinsecticide
detection
protein bait
Spotted-wing Drosophila
trapping
vinegar
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