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Ying Yong Sheng Tai Xue Bao

Title:		[Ecological effects of wheat-oilseed rape intercropping combined with methyl salicylate release on Sitobion avenae and its main natural enemies]
Author(s):		Dong J; Liu YJ; Li PL; Lin FJ; Chen JL; Liu Y;
Address:		"College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, China. june.dj@163.com"
Journal Title:		Ying Yong Sheng Tai Xue Bao
Year:		2012
Volume:		23
Issue:		10
Page Number:		2843 - 2848
DOI:
ISSN/ISBN:		1001-9332 (Print) 1001-9332 (Linking)
Abstract:		"In order to explore the effects of wheat-oilseed rape intercropping in combining with methyl salicylate (MeSA) release on Sitobion avenae and its main natural enemies, a field experiment was conducted at the Tai'an Experimental Station of Shandong Agricultural University in East China from October 2008 to June 2010 to study the temporal dynamics of S. avenae and its main natural enemies as well as the ecological control effect on the aphid. In the plots of intercropping combined with MeSA release, the S. avenae apterae population reached a peak about 12 d in advance of the control, but the peak value was significantly lower than that of the control. The average annual number of S. avenae apterae per 100 wheat tillers decreased in the order of wheat monoculture > wheat-oilseed rape intercropping > MeSA release > wheat-oilseed rape intercropping combined with MeSA release. Moreover, the total number of ladybeetles was the highest in the plots of intercropping combined with MeSA release. The population densities of aphid parasitoids reached a peak about 10 d in advance of the control, which could play a significant role in controlling S. avenae at the filling stage of wheat. Taking the biological control index (BCI) as a quantitative indicator, and with the ladybeetles and parasitoids as the dominant control factors in fields, it was observed that wheat-oilseed rape intercropping combined with MeSA release could suppress the population increase of S. avenae apterae effectively from the heading to filling stages of wheat"
Keywords:		"Agriculture/methods Animals Aphids/drug effects/growth & development/*physiology Brassica/growth & development China Ecosystem *Pest Control, Biological Pheromones/pharmacology *Predatory Behavior Salicylates/*chemistry Triticum/growth & development/*para;"
Notes:		"MedlineDong, Jie Liu, Ying-Jie Li, Pei-Ling Lin, Fang-Jing Chen, Ju-Lian Liu, Yong chi Research Support, Non-U.S. Gov't China 2013/01/31 Ying Yong Sheng Tai Xue Bao. 2012 Oct; 23(10):2843-8"