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Intercropping oilseed rape as a potential relay crop for enhancing the biological control of green peach aphids and aphid-transmitted virus diseases

文献类型： 外文期刊

作者： Lai, Rongquan 1 ; Hu, Hanqing 3 ; Wu, Xiaoting 1 ; Bai, Jingjing 1 ; Gu, Gang 4 ; Bai, Jianbao 5 ; Zhou, Ting 4 ; Lin, Ti 1 ;

作者机构： 1.Fujian Agr & Forests Univ, Coll Plant Protect, Fuzhou 350002, Fujian, Peoples R China

2.Fujian Agr & Forestry Univ, State Key Lab Ecol Pest Control Fujian & Taiwan C, Fuzhou 350002, Fujian, Peoples R China

3.Fujian Acad Agr Sci, Fuzhou 350002, Fujian, Peoples R China

4.Fujian Tobacco Sci & Res Inst, Fuzhou 350003, Fujian, Peoples R China

5.CNTC, Staff Dev Inst, Zhengzhou 450008, Henan, Peoples R China

6.Fujian Sci & Res Inst Tobacco Farm, Longyan Substn, Longyan 364000, Fujian, Peoples R China

关键词： Brassica napus; control effect; Myzus persicae; Nicotiana tabacum; Brassicaceae; Hemiptera; Aphididae; Aphidius gifuensis; Hymenoptera; Aphidiidae

期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA （ 影响因子：2.25； 五年影响因子：2.184 ）

ISSN： 0013-8703

年卷期： 2019 年 167 卷 11 期

页码：

收录情况： SCI

摘要： Tobacco viruses transmitted by green peach aphids, Myzus persicae (Sulzer) (Hemiptera: Aphididae), cause severe disease in flue-cured tobacco, Nicotiana tabacum L. (Solanaceae), in China and throughout the world. Field experiments were conducted in 2016 and 2017 in Longyan City, Fujian Province, China, to determine whether M. persicae and aphid-transmitted virus diseases are affected by intercropping of oilseed rape, Brassica napus L. (Brassicaceae), in tobacco fields. The results showed that, compared with those in monocultured fields, the densities of M. persicae and winged aphids in intercropped fields significantly decreased in both 2016 and 2017. In particular, the appearance of winged aphids was delayed by ca. 7 days. Moreover, the densities of Aphidius gifuensis Ashmead (Hymenoptera: Aphidiidae), a parasitoid of the aphid, significantly increased in 2016 and 2017. Accordingly, the incidence rates of aphid-transmitted virus diseases (those caused by the cucumber mosaic virus, potato virus Y, and tobacco etch virus) significantly decreased in the intercropped fields in 2016 and 2017. Tobacco yields and monetary value significantly increased in 2016 (by 10-25 and 14-29%, respectively) and 2017 (by 17-22 and 22-34%, respectively). Consequently, our results suggest that intercropping oilseed rape in tobacco fields is a good approach to regulating and controlling aphids and tobacco mosaic viruses, for example potyvirus, and this intercropping can help control aphid-transmitted virus diseases in tobacco.

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