This kind of aphid height 2 millimeters, take the Japanese giant knotweed as the food.
这种蚜虫身长2毫米, 以日本虎杖为食.
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The possible causes of the formation of aphid host bio types were reviewed.
综述了蚜虫寄主专化型产生的可能原因.
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在我国,CTV及其强力传媒褐色橘蚜 ( ToxopteracitricidaKirkaldy ) 广泛分布.
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The pesticidal effect on aphid of the anaerobic fermentation liquid is studied by field experiment.
利用蚜虫作为试验对象,通过田间试验的方法,对厌氧发酵液的杀虫效果和杀虫机理进行了研究.
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This paper studies composition and characters of the aphid fauna of Hengduan Mountains Region.
研究了横断山区蚜虫区系的组成和特点.
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另一些除草剂, 包括杀草强 、 燕麦灵 、 麦草畏和MCPA, 都能够改变处理寄主上的蚜虫群体.
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Since aphid population may become resistant to organophosphorus compounds, avoid excessive spraying.
因为蚜虫类对有机磷化物能产生抗性, 所以要避免过多的喷洒.
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他利用蚜虫繁殖力资料说明了抗生作用对虫口动态的理论效应.
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There is adequate variability in plants to breed for resistance to certain aphid vectors.
植物有充分的变异性可用于培育对一些蚜虫介体的抗性.
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In general an aphid cannot or hardly identify its host at a distance.
在一定距离以外,蚜虫通常不能或难以识别其寄主植物.
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Aphid count on plants in fields do not correlate with virus spread in the same fields.
田间植株蚜数与同块田内病毒的扩散程度间无相关性.
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The five small arthropod were still very serious pest, especially aphid, scale and whitefly.
其中,五小害虫的危害仍然非常严重, 尤其是蚜虫 、 蚧壳虫和粉虱.
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Study on drug fast of wolfberry aphid to three kinds of pyrethrins in Zhongning county, ningxia
宁夏中宁县枸杞蚜虫对三种菊酯类农药的抗性研究
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