psyllid

Part of the answer is an insect called the potato psyllid.

但一种叫作马铃薯木虱的昆虫负有部分责任.

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It appears to be to a bacterium transmitted by the potato psyllid's relative, the citrus psyllid.

该细菌似乎和马铃薯木虱的亲缘生物 —— 柑桔木虱——传播的细菌有亲缘关系.

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