Volatiles Play an Important Role in the Attractiveness of Food for Trapping the Stored Grain Pests Oryzaephilus surinamensis L. (Coleoptera: Silvanidae)

Maidinai Sabier; Jirui Wang; Xia Wang; Jiande Jin; Zhunjing Wang; Zhihong Liao; Bo Shen; Jin Lu; Jianyu Deng; Xingquan Liu; Guoxin Zhou

doi:10.20944/preprints202104.0214.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 6 April 2021 / Approved: 7 April 2021 / Online: 7 April 2021 (17:20:53 CEST)

The Oryzaephilus surinamensis L. (Coleoptera: Silvanidae), is widely distributed all over the world, this beetle causes serious damage to stored products. Much attention has been paid to use food attraction or food volatile as a non-pollution method to achieve pest management. However, in this study, six most attractive food to O. surinamensis were selected among thirty eight food. Furthermore, the food mixture M17 with the best attractiveness were selected among the eighteen food mixtures combined by these six foods at different ratio. Subsequently food mixture M17 were tested in actual barn and compared with commercial attractant. We collected the volatile from food mixture, the volatile compounds attractive to this beetle also. We identified six electrophysio-logically active compounds responsible for the attraction of O. surinamensis, among the six chemically identified compounds, nonanal, dodecane, tridecaneand β-caryophyllene significantly attracted O. surinamensis when tested individually in behavioral assays. Blend of six chemicals according to food volatile concentration was most attractive to the beetles. The findings of this study reveal that food mixture M17 and food volatile can be potentially used for development of effective attractants for management of O. surinamensis.

Oryzaephilus surinamensis; food mixtures; field trapping; volatiles; antennal response

BIOLOGY, Anatomy & Morphology

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Volatiles Play an Important Role in the Attractiveness of Food for Trapping the Stored Grain Pests Oryzaephilus surinamensis L. (Coleoptera: Silvanidae)

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