Impact of Wheat-Mung Bean Intercropping on English Grain Aphid (Hemiptera: Aphididae) Populations and Its Natural Enemy

doi:10.1603/EC11214

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	Impact of Wheat-Mung Bean Intercropping on English Grain Aphid (Hemiptera: Aphididae) Populations and Its Natural Enemy
	Xie, Hai-Cui 1; Chen, Ju-Lian 1; Cheng, Deng-Fa 1; Zhou, Hai-Bo 1; Sun, Jing-Rui 1; Liu, Yong 2; Francis, Frederic 3
刊名	JOURNAL OF ECONOMIC ENTOMOLOGY
	2012
卷号	105 期号:3 页码:854-859
关键词	wheat intercropping Sitobion avenae natural enemy community index
ISSN号	0022-0493
DOI	10.1603/EC11214
通讯作者	Xie, Hai-Cui
英文摘要	The effects of intercropping wheat, Triticum aestivum L., with mung bean, Vigna radiate L., on the populations of English grain aphid, Sitobion avenae (F.) (Hemiptera: Aphididae), and its natural enemies were evaluated by field and laboratory experiments. The population densities of aphids and their natural enemies were evaluated in the intercropped field against different row ratio combinations of wheat-mung bean. Results showed that wheat-mung bean intercropping caused a drop in aphid densities, and the ratio 12 wheat:4 mung bean brought about the largest drop (>18%). In addition, the population densities of coccinellids (ladybirds) and parasitoids and the species diversity of all the natural enemies of aphid were higher in the intercropped field than in the field planted only with wheat. However, intercropping did not influence the community indices (evenness and index of dominance concentration) of the natural enemies. Y-tube olfactometer bioassays were carried out in the laboratory to test whether odor blends of host and nonhost plants affect the host selection of S. avenae. Bioassays indicated that both apterous and alate aphids significantly preferred host plant odor over odor blends of host and intercropped species. Hence, the olfactory-based host location of aphids in the field might be affected by intercropping. The intercropping experiment clearly showed that increased crop species diversity suppresses aphid population growth and preserves the population of natural enemies of aphids. Our results also provide support for the "resource concentration hypothesis" and the "enemies hypothesis."
学科主题	Entomology ; ENTOMOLOGY
语种	英语
出版者	ENTOMOLOGICAL SOC AMER
WOS记录号	WOS:000305473500013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/12253]
专题	植物保护研究所
作者单位	1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China 2.Shandong Agr Univ, Coll Plant Protect, Tai An 271018, Shandong, Peoples R China 3.Univ Liege, Gembloux Agro Bio Tech, B-5030 Gemblou, Belgium
推荐引用方式 GB/T 7714	Xie, Hai-Cui,Chen, Ju-Lian,Cheng, Deng-Fa,et al. Impact of Wheat-Mung Bean Intercropping on English Grain Aphid (Hemiptera: Aphididae) Populations and Its Natural Enemy[J]. JOURNAL OF ECONOMIC ENTOMOLOGY,2012,105(3):854-859.
APA	Xie, Hai-Cui.,Chen, Ju-Lian.,Cheng, Deng-Fa.,Zhou, Hai-Bo.,Sun, Jing-Rui.,...&Francis, Frederic.(2012).Impact of Wheat-Mung Bean Intercropping on English Grain Aphid (Hemiptera: Aphididae) Populations and Its Natural Enemy.JOURNAL OF ECONOMIC ENTOMOLOGY,105(3),854-859.
MLA	Xie, Hai-Cui,et al."Impact of Wheat-Mung Bean Intercropping on English Grain Aphid (Hemiptera: Aphididae) Populations and Its Natural Enemy".JOURNAL OF ECONOMIC ENTOMOLOGY 105.3(2012):854-859.