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The cercospora leaf spot is one of the main diseases infecting sugarbeet.褐斑病是甜菜的主要病害之一,危害性很大.The results show that the Heihe region Cercospora Race greater the number and frequency changes.結(jié)果表明黑河地區(qū)灰斑病生理小種數(shù)目和頻率有較大變化....

尾孢屬...

Cercospora的音標(biāo)：...