| Title: | Recruitment of Hippodamia variegata by active volatiles from Glycyrrhiza uralensis and Alhagi sparsifolia plants infested with Aphis atrata |
| Author(s): | Jiang Y; Xiu C; Pan H; Liu X; |
| Address: | "National Plant Protection Scientific Observation and Experiment Station of Korla, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, China. Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, China. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae), a dominant predatory natural enemy species in cotton-planting, is a key biological control agent for aphids in China. Our previous study showed that herbivore-induced plant volatiles (HIPVs) from Glycyrrhiza uralensis (Fisch.) (Fabales: Fabaceae) and Alhagi sparsifolia (Desv.) (Fabales: Fabaceae) plants infested with Aphis atrata (Zhang) (Homoptera: Aphididae), were important semiochemicals for Hippodamia variegata to locate aphids. However, little was known about the varieties and function of active volatiles from HIPVs of the two plant species. RESULTS: In this study, results from gas chromatography-electroantennography detection (GC-EAD) demonstrated that seven HIPVs (butyl acrylate, alpha-pinene, butyl isobutyrate, beta-pinene, butyl butyrate, 1,3-diethylbenzene and 1,4-diethylbenzene) identified from the two damaged plant species elicited antennal responses from Hippodamia variegata. Also, results from gas chromatograph-mass spectrometry (GC-MS) analysis showed that the concentrations of the seven active volatiles were significantly higher than those from corresponding healthy plants. Hippodamia variegata exhibited varying degrees of response to each active volatile in electroantennography (EAG) trials, however, only alpha-pinene, butyl isobutyrate, beta-pinene and butyl butyrate significantly attracted Hippodamia variegata in behavioral trials conducted in the laboratory. They also had a better trapping effect on Hippodamia variegata in cotton fields. CONCLUSION: Four active compounds (alpha-pinene, butyl isobutyrate, beta-pinene and butyl butyrate) identified from two damaged plant species were considered the most effective HIPVs that attract Hippodamia variegata. These findings provide possibilities for the development of Hippodamia variegata attractants. They also provide a theoretical basis for the biological prevention and control of aphids using Hippodamia variegata. (c) 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry" |
| Keywords: | Aphis atrata HIPVs Hippodamia variegata behavioral response electroantennogram activity field trapping; |
| Notes: | "PublisherJiang, Yan Xiu, Chunli Pan, Hongsheng Liu, Xiaoning eng 32060617/the National Natural Science Funds of China/ SKLOF202007/Open Fund of the State Key Laboratory for Biology of Plant Diseases and Insect Pests/ xjkcpy-2020004/Special Incubation Project of Science & Technology Renovation of Xinjiang Academy of Agricultural Sciences/ 2020D14004/Tianshan Innovation Team Plan/ England 2023/09/11 Pest Manag Sci. 2023 Sep 11. doi: 10.1002/ps.7765" |
