2、

Study on the Mortality of the White Wax Scale Insect with Relation to Rainfall in Guangxi

降雨量对广西地区白蜡虫死亡及其种虫白蜡产量的影响

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3、

From March to October, the two peaks of VB2 content were corresponded to the two feeding and quick development stages of the scale insect.

在一年中,VB2的含量呈现两个高峰期,正好与该蚧虫的两个取食期相吻合。

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4、

It was concluded that a higher VB2 content in the host plant in some degree was benefit to the scale insect occurring greatly in the polluted city environment.

由此认为,污染使树体内VB2含量增高很可能是促进该蚧虫种群增长的一个原因。

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5、

Mexican red scale insect that feeds on cacti; the source of a red dye.

墨西哥红色小介壳虫,吃仙人掌; 是红色染料的原料.

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7、

we do not know what they eat or why they also live with a wax scale insect.

我们不知道丝蚁吃什么,也不知道为什么和白蜡虫生活在一起。

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8、

second, they live with a wax scale insect.

其次,它们与白蜡虫一起生活。

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9、

the pesticide "zhongnong calcium arsenate" was developed in 1938 for the control of insect pests on cotton, which is the beginning of research and preparation as well as application of chemical pesticide in large scale in china.

1938年制成中农砒酸钙农药,用以防治棉花害虫,是中国专门研制化学农药及大面积使用化学农药之始。

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