茶扦插苗根腐性苗枯病在广西各地苗圃普遍发生，造成死苗。
Root rot of tea cutting seedlings occurs universally in the seedling nurseries in different areas in Guangxi and the damage was serious.
青枯菌检出阳性和根黑色坏死的始发期可作为防治青枯病第一次和第二次施药时期。
The first two periods should be taken as the first and second application time to prevent the tobacco bacterial wilt disease respectively.
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