The olfactory responses of mirid bugs to six plant extracts and their volatiles

文献类型： 外文期刊

第一作者： Yin, Haichen

作者： Yin, Haichen;Li, Wenjing;Xu, Dong;Wan, Peng;Xu, Min

作者机构： Hubei Acad Agr Sci, Key Lab Integrated Pest Management Crops Cent Chi, Minist Agr & Rural Affairs, Inst Plant Protect & Soil Fertilizer,Hubei Key La, Nanhu Ave 6, Wuhan 430064, Peoples R China;Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan, Peoples R China

关键词： Adelphocoris suturalis; Apolygus lucorum; diethyl phthalate; methyl levulinate; pest management

期刊名称：JOURNAL OF APPLIED ENTOMOLOGY （ 2020影响因子：2.603； 五年影响因子：2.562 ）

ISSN： 0931-2048

年卷期：

页码：

收录情况： SCI

摘要： Many methods for management of mirid bugs, one of the major pest species in cotton fields, have been developed in recent decades. The use of attractive plant volatiles may be a safe and effective alternative compared with chemical pesticides. Very little is known about the responses of the bugs to some specific volatiles. In this study, the attractive effects for the mirid bugApolygus lucorumwere evaluated and compared among ethanol extracts obtained from six types of plants. The results showed thatA. lucorumhad the highest selection response rate to the extract fromAllium tuberosumseeds and 70.51% of the adults tended to choose this odour source. Among 40 identified compounds of the volatiles comprisingA. tuberosumseed extracts, diethyl phthalate and methyl levulinate had significantly higher attractive effects than that of cotton leaves, but the respective selection response rates were less than 65%. We found that when methyl levulinate and diethyl phthalate were mixed in volume ratios of 3:7 and 6:4, the selection response rates ofA. lucorumfor the mixtures were 54.67% and 63.65%, respectively. These response rates were significantly higher than those for the two compounds presented alone. Furthermore, the selection response rates ofA. lucorumbased on these mixtures reached 82.75% and 75.73%, respectively when compared with cotton leaves. The two volatile mixtures also showed a significantly higher attractive effect forAdelphocoris suturalis, with respective selection response rates at 74.58% and 77.80% when compared with cotton leaves. Moreover, the two attractants showed no difference between the responses of male and female mirid bugs. We concluded that an appropriate application of the attractants described herein has the potential to develop a safe and effective approach for the monitoring and control of mirid bugs in cotton fields.

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