curly shoot virus and tomato yellow leaf curl virus. These predatethe arrival of biotype B, but the new arrival does particularly well on plants infected by them.

在中国，烟粉虱传播烟草曲茎病毒和番茄黄曲叶病毒，这些病毒在B生物型入侵前便有之，但新的生物型在感染该等病毒的植株上活得尤为“有滋有味”。

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A mutated “biotype B” insect emerged in Napa Valley in 1980 and did an estimated $6 billion of damage before wide-scale uprooting, burning and replanting was completed in 1995.

1980年，加州纳帕谷出现了一种基因突变的“同型小种B型”蚜虫。 这种蚜虫造成了估计60亿美元的损失，随后葡萄园开始了大规模连根拔除，烧毁并重新栽种于1995年完成。

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The results showed that the invasive B biotype has the capacity to displace the non-B biotype in a short period of time.

这说明B型烟粉虱具有在短期内竞争取代浙江非B型烟粉虱的能力。

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