aphid

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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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 woolly aphid has a lanate coat resembling cotton.

棉蚜虫有一层羊毛状的表皮,很像一团棉花.

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The aphid is now laying waste to the wheat and barley fields.

蚜虫正在毁掉一片片的小麦和大麦田地。

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He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics.

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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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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One kind of Japanese aphid and one kind of leaf spot fungus.

一种日本蚜虫和一种叶斑真菌.

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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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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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Several other herbicides, including amitrole, barban, dicamba , and MCPA, alter aphid populations on treated hosts plants.

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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In which Aphid and leaflike are the dominant insects in spring.

其中蚜虫、叶螨是春季昆虫群落的优势种.

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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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The reproduction rate of teh aphid is influenced by nutrition.

蚜虫的繁殖率受到营养的影响.

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The aphid eat green grass, the false eats soul.

蚜虫吃青草, 虚伪吃灵魂.

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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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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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CTV and its efficient vector, brown citrus aphid ( Toxoptera citricida Kirkaldy ), are widely distributed in China.

在我国,CTV及其强力传媒褐色橘蚜 ( ToxopteracitricidaKirkaldy ) 广泛分布.

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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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