中文摘要：

木尔坦棉花曲叶病毒是引起巴基斯坦和印度棉花曲叶病流行的主要病原之一，是由烟粉虱以持久方式传播。近年来，在广东和广西分别发现了严重侵染朱槿和黄秋葵的木尔坦棉花曲叶病毒。虽然广东和广西不种植棉花，但该病毒传播介体烟粉虱在广东、广西及我国棉花产区都有分布。因此该病毒的入侵，对我国棉花生产构成严重威胁。

英文摘要：

Cotton leaf curl Multan virus is one of main pathogens that has caused severe cotton leaf disease in Paki- stan and India. The disease is transmitted by the whitefly, Bemisia tabaci Genn., in a circulative manner. Recently, the Cotton leaf curl Multan virus （CLCuMV） was found to seriously infect Hibiscus rosa-sinensis and Abelmoschus esculentus in Guangdong and Guangxi. Cotton was not grown in these two provinces, but the virus transmission vector, the whiteflies, are widely distributed in the two provinces and other cotton growing provinces in China. Thus, the invaded CLCuMV has posed a serious threat to cotton production in China.