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Issue:ISSN 2095-1353
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Your Position :Home->Past Journals Catalog->2017年54 No.5

Regulatory effects of different sugarcane and maize leaf volatiles on the feeding behavior of Asian corn borer (Ostrinia furnacalis) larvae
Author of the article:JIANG Xing-Chuan1, 2, 3** DONG Wen-Xia2 XIAO Chun2 CHEN Bin2 YAN Nai-Sheng2 CAO Hai-Qun1 LI Z
Author's Workplace:1. College of Plant Protection, Anhui Agricultural University, Hefei 230036, China; 2. College of Plant Protection, Yunnan Agricultural University, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Agro-Biodiversity and Pest Management of Education Ministry of China, Kunming 650201, China; 3. Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Beijing 100193, China
Key Words:sugarcane (Saccharum officinarum), maize (Zea mays), Asian corn borer (Ostrinia furnacalis), plant volatiles, feeding behavior
Abstract:

 [Objectives]  Plant volatiles play an important role in insect behavior. How plant volatiles affect the feeding behavior of Asian corn borer (Ostrinia furnacalis) larvae in a sugarcane (Saccharum officinarum) and maize (Zea mays) intercropping system was investigated to provide information to improve control of these pests. [Methods]  Leaf volatiles collected during the sugarcane tiller and maize elongation stages were analyzed with gas chromatography-mass spectrometry (GC-MS). The effects of four doses (5×103, 5×104, 5×105, 5×106 g/mL) of 20 different compounds on larval feeding behavior were then investigated. [Results]  Leaf volatiles of sugarcane and maize were extracted, and 49 and 52 compounds produced during the sugarcane tiller and maize elongation stages, respectively, were identified. Among these compounds, 43 were extracted from both sugarcane and maize leaves. A further 6 compounds were only found in sugarcane leaves and 9 compounds were only found in maize leaves. The volatiles identified were green leaf volatiles, terpenoids, aliphatic compound (aldehydes, ketones, acids, alcohols, esters, amides, and hydrocarbons), the amounts of which differed between sugarcane leaves and maize leaves. However, hydrocarbons were the most abundant volatile produced by both sugarcane and maize leaves. (Z)-ocimene, decanoic acid, heptacosane and nonacosane were significantly more attractive to Asian corn borer larvae than the control substance, whereas nonanal, nonanoic acid, isopropyl myristate, hexadecanoic acid methyl ester, tetracosane and octacosane repelled larvae. [Conclusion]  Leaf volatiles produced by sugarcane and maize differ, and these differences can affect the feeding behavior of first-instar Asian corn borer larvae.

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