Isolation and identification of attractants from the pupae of three lepidopteran species for the parasitoid Chouioia cunea Yang
文献类型: 外文期刊
作者: Li, Min 1 ; Yang, Yixin 1 ; Yao, Yonghong 2 ; Xiang, Weifang 1 ; Han, Jiayi 1 ; Wang, Yonghui 1 ; Bai, Penghua 3 ; Wang, 1 ;
作者机构: 1.Tianjin Normal Univ, Tianjin Key Lab Anim & Plant Resistance, Tianjin 300387, Peoples R China
2.Chinese Acad Sci, Tianjin Inst Ind Biotechnol, Tianjin, Peoples R China
3.Tianjin Acad Agr Sci, Inst Plant Protect, Tianjin, Peoples R China
4.Luohe Cent South Forestry Adm, Nat Enemy Breeding Ctr, Luohe, Henan, Peoples R China
5.Shandong Normal Univ, Coll Life Sci, Key Lab Anim Resistance Res, Jinan, Peoples R China
关键词: Chouioia cunea; Hyphantria cunea; Antheraea pernyi; Lymantria dispar; semiochemicals; kairomones; pupal volatiles
期刊名称:PEST MANAGEMENT SCIENCE ( 影响因子:4.845; 五年影响因子:4.674 )
ISSN: 1526-498X
年卷期: 2020 年 76 卷 5 期
页码:
收录情况: SCI
摘要: BACKGROUND Chouioia cunea Yang (Hymenoptera: Eulophidae) is a parasitic wasp and natural enemy of several lepidopteran pests during their pupal stage. The volatiles from pupae of three hosts, Hyphantria cunea (Arctiidae), Antheraea pernyi (Saturniidae) and Lymantria dispar (Erebidae), were analyzed and compared to elucidate the chemical cues used by C. cunea to locate its hosts. RESULTS The attraction of C. cunea to H. cunea pupae has no obvious association with the types of plant leaves consumed by H. cunea before pupation. C. cunea exhibited the strongest attraction to the pupae of H. cunea, followed by those of A. pernyi and L. dispar based on behavioral experiments. Gas chromatography-mass spectrometry and GC-electroantennography (GC-EAD) analyses showed that these three host pupae consisted of essentially the same active volatile components but at different relative amounts. Active components derived from these pupae by GC-EAD were alkanes from C12 to C27, and C. cunea showed different levels of attraction to different single compounds. CONCLUSION Host location by C. cunea primarily depends on common compounds emanating from the pupae of several host species. The relative amount of each component varies across host species, guiding host preferences by C. cunea. Optimal blends of several components were identified. Understanding the chemical cues used by C. cunea to locate its host could increase the possibility of developing attractants for parasitic wasps and subsequently increasing the parasitism rate of C. cunea on various hosts. (c) 2019 Society of Chemical Industry
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