Abstract : Megranate disease become increasingly serious in Yunnan recent years, especially root disease, it is often overlooked because the harm is hidden, nematode disease is one of them.

• 摘要 ： 近年来云南石榴病害日趋严重，特别是根部病害，因为其危害具有隐蔽性，常被人们忽略，线虫病害即其中之一。