aphids的例句大全

The larvae prey upon small aphids.

这种幼虫以小蚜虫为食。

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When growing vegetables, one must guard against cabbage aphids.

菜农在种植蔬菜时一定要注意防治菜蚜.

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Chrysopidae and Hemerobiidae ; larvae feed on insect pests such as aphids.

两种薄纱状翅膀的昆虫之一(蛹与褐 蛉 )其幼虫吃诸如蚜虫等的害虫.

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The young beetle larvae can eat hundreds of aphids.

而幼龄瓢虫则可吃掉数百只蚜虫.

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Fungal pathogens are important natural biological control agents of aphids.

病原真菌是蚜虫的重要自然控制因子.

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Viruses are transmitted by VECTORS such as aphids and nematodes.

病毒的传播由传染媒介执行,例如蚜虫和线虫.

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Alternation of sexual and parthenogenic generations , as in some aphids.

有性生殖和无性生殖的交替.

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Certain aphids seem to prefer waxy leaves, whereas other species are repelled by them.

有些蚜虫,看来喜欢有蜡质的叶片, 而这种叶片对另一些蚜虫却有拒避作用.

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Phloem elements and adjacent tissues are the principal feeding sites for most aphids.

韧皮部及其邻近组织是大多数蚜虫的主要取食部位.

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However, reproduction rates of some insects such as aphids are influenced by nutrition.

然而, 一些昆虫的繁殖率,如蚜虫等是受营养影响的.

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Clusters of tiny insects called aphids were to be found on the underside of the leaves.

结果在树叶背面找到成串的叫作蚜虫小虫子.

新概念英语第三册

A field may be smothered with aphids.

一块田的植株可以被蚜虫盖满.

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Wind has little influence on sedentary aphids.

风对不动的蚜虫很少有影响.

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She pinched the aphids off the rose.

她从玫瑰(花)上抓走蚜虫.

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Heavy rain or hail may dislodge many aphids from the plants.

大雨和冰雹可从植株上击落很多蚜虫.

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He searched the grass and trees around the cotton fields to trace the source ofthe aphids.

他在棉花地周围的草丛、树干上找寻蚜虫产生的根源.

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A significant linear relationship was found between the trapped aphid number and aphid incidence in current shoots. Thus, prediction confidence intervals of aphids on traps combining with the occurrence peak of apterous aphids in fields were suggested to estimate aphid occurence.

同时田间新梢蚜虫发生率与黄板上蚜虫诱集量有显著的线性关系，可以利用黄板上蚜虫诱集量平均值的预测区间结合田间无翅蚜发生高峰来预测田间蚜虫的发生情况。

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For the pear orchards with heavy incidence of aphids, OFC should be practiced for one year after RSC for two or three years.

对于蚜虫发生重的梨园，可以避雨栽培2～3年后实行1年露地栽培。

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Bunchy top disease can spread from plant to ant it and is also spread by? aphids .

束顶病可以在植株之间传播,也能通过 蚜虫 传播.

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Bunchy top disease can spread from plant to plant and is also spread by aphids.

束状植物的疾病可以从植物到植物的扩展,同时也通过蚜虫传染.

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