干旱区生态环境知识资源中心(Arid): 大豆蚜自然天敌种群动态及其控蚜作用研究

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	大豆蚜自然天敌种群动态及其控蚜作用研究
其他题名	The population dynamics and control effect of important natural enemies of the soybean aphid, Aphis glycines
	李学军 1; 郑国 1; 王淑贤 1; 邢星 2; 李艳 2; 于广文 2; 尤广兰 3
来源期刊	应用昆虫学报
ISSN	2095-1353
出版年	2011
卷号	48 期号:6 页码:1613-1624
中文摘要	2008-2010年间，分别在辽东山区和辽西半干旱丘陵地区设置试验田，采用系统调查的方法，对大豆蚜Aphis glycines Matsumura自然天敌种群动态及控蚜作用进行研究。共鉴定辽宁地区大豆蚜天敌7目、16科、44种，其中优势天敌异色瓢虫Leis axyridis(Pallas)居首位。田间试验结果表明，大豆蚜天敌田间消长表现连续6个阶段，即初见期、波动期、上升期、盛期、下降期和消退期；田间3年平均大豆蚜数量与天敌（天敌单位）总体呈极显著的相关关系，各年度百株蚜量与天敌单位也均呈极显著相关关系。辽东地区天敌跟随紧密并随蚜虫数量变化波动，具有明显的自然控蚜作用。其中，7月11-21日天敌发生盛期与蚜虫高峰期吻合，蚜虫急剧下降；7月下旬后，受高温、多雨、蚜霉菌作用、植株老化等影响，蚜虫种群逐步下降、消退，天敌也陆续迁出豆田。辽西地区天敌迁入豆田比蚜虫晚10~15d，对前期蚜虫控制弱，且天敌峰期滞后蚜虫5d左右，一般年份蚜虫发生较重。
英文摘要	The population dynamics and the control effect of important natural enemies of the soybean aphid were systematically investigated during 2008 to 2010 in mountain regions of eastern Liaoning Province and semi-arid hill regions of western Liaoning Province, China. Forty four species of natural enemies from 16 families and 7 orders were identified, among which Leis axyridis (Pallas) was the dominant species. The results of field experiments indicate that populations of important natural enemies of aphids in soybean fields went through six consecutive stages; initial, fluctuating, rising, peak, declining and subsiding. Significant positive correlations were found between the mean population size of soybean aphids and overall numbers of their natural enemies in three years. A significant sub-annual correlation was also found between the overall number of natural enemies and the aphid population per 100 plants. In eastern Liaoning, the population dynamics of natural enemies fluctuated closely with those of soybean aphids, suggesting that the former had a significant controlling effect on the latter. The population peaks of natural enemies and soybean aphids were well matched from 11 to 21 of July, resulting in a sharp decline in soybean aphids after that period. After late July, soybean aphid numbers declined gradually due to high temperature and rainfall, fungal infections and plant aging effects which caused their natural enemies to progressively move out of soybean fields. In western Liaoning, natural enemies moved into soybean fields 10 to 15 days later than soybean aphids and consequently had a relatively weak controlling effect on early soybean aphids. Populations of natural enemies also peaked about 5 days later than that of the soybean aphids resulting in relatively serious infestations of soybean aphids in this region.
中文关键词	大豆蚜 ; 自然天敌 ; 种群动态 ; 控蚜作用
英文关键词	Aphis glycines natural enemy population dynamics controlling effect
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4373654
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227325
作者单位	1.沈阳师范大学, 辽宁省生物进化与生物多样性重点实验室, 沈阳, 辽宁 110034, 中国; 2.岫岩县农业技术推广中心, 岫岩, 114300; 3.建平县农业技术推广中心, 建平, 122400
推荐引用方式 GB/T 7714	李学军,郑国,王淑贤,等. 大豆蚜自然天敌种群动态及其控蚜作用研究[J],2011,48(6):1613-1624.
APA	李学军.,郑国.,王淑贤.,邢星.,李艳.,...&尤广兰.(2011).大豆蚜自然天敌种群动态及其控蚜作用研究.应用昆虫学报,48(6),1613-1624.
MLA	李学军,et al."大豆蚜自然天敌种群动态及其控蚜作用研究".应用昆虫学报 48.6(2011):1613-1624.