蚧是什么意思_蚧用英语怎么说_蚧的翻译_蚧翻译成_蚧的中文意思_蚧怎么读,蚧的读音,蚧的用法,蚧的例句

Unaspis euonymi ( Comstock ) is an important pest of eucinymus plants.

南京地区卫矛矢尖蚧Unaspis euonymi Comstock一年发生3代.

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Diaspidiotus perniciosis ( Comstock ) occurs 3 generations per year in apple orchards of Shaanxi Province.

梨枝圆盾蚧在陕西省苹果园1a发生3代.

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The most common problem is the Mealy bug , which feeds on plant sap.

粉蚧是个常见的问题,它以生石花的汁液为食.

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Study shows that: Encyrtus Ishii reproduces annually and overwinters as pupa in their host.

结果显示,纽绵蚧跳小蜂一年发生一代,以蛹在寄主体内越冬.

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The coccidophagous species of ladybirds play important roles in regulationpopulation of scale insects.

食蚧瓢虫在蚊虫生物防治中具有很重要的作用.

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The occurrence and distribution of Drosicha corpulent a ( Kuwana ) in free - pollutant and conventional apple orchard were studied.

分别在无公害苹果园和常规管理苹果园,调查了草履 蚧 的发生数量.

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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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