小麦蚜虫
- 网络wheat aphid
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小麦蚜虫是我国西北小麦产区的重要害虫,除直接为害小麦造成减产外,由它传播的小麦黄矮病(BYDV),也给小麦生产带来严重损失。
Wheat aphid is one of the most important pests in wheat region in Northwest China . It could reduce the wheat productions directly , and transmit the Barley Yellow Dwarf Virus ( BYDV ) to lead considerable losing indirectly .
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小麦蚜虫及黄矮病综合防治研究综述
Synthesis Discussion of Prevention and Cure on Wheat Aphid and Yellow Dwarf
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麦田杂草种群、小麦蚜虫发生量、大型土壤动物数量、小麦受条锈病伤害程度随UV-B的增加而减少;
Increased UV-B radiation can reduce weed number , aphid number , and animal number in soil , rust illness degree in wheatfield .
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小麦蚜虫为害特性及防治指标研究
Studies on the destructive characteristics and preventive indexes of wheat aphids
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三种生物碱防治小麦蚜虫的药效研究
Insecticidal effects of three kinds of alkaloids on wheat aphids
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小麦蚜虫混合种群数量动态研究
Investigation on Quantitative Dynamics of the Mixed Wheat Aphis Population
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小麦蚜虫的繁殖能力很强,并具有一定的转移扩散性。
The wheat aphids has high reproducibility , with diffuse and metastasis .
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小麦蚜虫天敌资源丰富,其优势天敌在甘肃环县有30余种。
The natural enemy resources are rich in Huanxian County , Ganshu Province .
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小麦蚜虫种群消长气象影响成因及预测
Analysis of Meteorological Factors and Forecast of Population Dynamic Changes of Wheat Aphid
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自然天敌控制小麦蚜虫的效果观察
Observation Effect of Natural Enemy on the Control of Aphid in Wheat Field
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四川小麦蚜虫优势种群演替的研究
Succession of predominant species of wheat aphids in Sichuan
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陇南山区小麦蚜虫发生气象条件及程度预测模型
Epidemic Meteorologic Conditions and Degree Prediction Model of Wheat Aphids in Longnan Mountainous Area
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辽宁省朝阳地区小麦蚜虫田间消长规律及防治适期
The field population dynamic and optimum control period of wheat aphids in Chaoyang Region , Liaoning
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宁夏小麦蚜虫、黄矮病监测及基于数据网络报送的预报技术研究
Monitoring of Wheat Aphids and Yellow Dwarf Disease in Ningxia and Forecasting Techniques Based on Data-delivery Through Internet
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本文根据历史资料,分析了四川小麦蚜虫优势种群演替情况。
Historical data were analysed to investigate the succession of predominant aphid species attacking wheat crops in Sichuan province .
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麦蚜自然种群的空间动态小麦蚜虫混合种群数量动态研究
Spatial Dynamics of Wheat Aphid Population under Natural Conditions . Investigation on Quantitative Dynamics of the Mixed Wheat Aphis Population
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小麦蚜虫是宁夏山川各地的常发性害虫,每年都给小麦生产造成一定的损失。
Wheat aphids as insect pests frequently occur in the mountains and plains of Ningxia . It causes losses in wheat production every year .
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通过对麦蚜混合种群的系统调查,从种群生态学的角度出发,采用累加百分数及建立逻辑斯蒂数学模型等方法对小麦蚜虫的混合种群增长模型进行了分析。
With the cumulative percentage , building logistic model and other methods , and through a systematic investigation , the growth trends of the mixed population of wheat aphis was analyzed from the population biological aspect .
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田间试验表明:麦蚜天敌对小麦蚜虫的控制作用比较明显,其中七星瓢虫和草间小黑蛛为优势种,控制效果分别为28.5%和23.2%。
The experimental result showed that the natural enemy had obvious effect on the control of aphid in wheat field , especially for ladybug and spider , which control efficiency were 28.5 % and 23.2 % respectively .
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为了探讨小麦抗蚜虫机理,用能谱分析方法研究了12个小麦品种叶片表面化学元素组成及其与抗蚜性的关系。
In order to clarify the mechanism of aphid resistance in wheat , the element composition of leaf ( surface ) and its relationship with aphid resistance were studied in 12 wheat ( cultivars ) with energy spectrum ( analysis ) method .
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四川小麦穗期蚜虫发生程度预测研究
Forecasting studies on the occurrence of wheat aphids in the earing stage of the crop in Sichuan Province
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证明该模型对预测小麦穗期蚜虫发生程度有较好效果。
This indicated a satisfactory practical value of this model in forecasting the occurrence of wheat aphids in the earing stage .
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采用人工控制虫口密度,研究小麦生育期蚜虫密度对小麦产量的影响。
The effects of the population density of wheat aphids at different growth stages on wheat yield were investigated under controlled conditions with the density of the pest regulated .
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通过测定小麦生育期内叶绿素含量变化及分析叶绿素含量与麦蚜量间的动态关系,提出小麦蚜虫灾害遥感监测的植物生理学依据。
Based on the measurement of chlorophyll content in the period of wheat growing and yielding and the relationship analysis between the content of chlorophyll and the amount of wheat aphid , this paper presented the basis of plant physiology for wheat aphid disaster monitoring using remote sensing technologies .