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桉树(Eucalyptus ssp.)是世界人工造林三大速生树种(桉树、杨树与松树)之一,也是我国南方营造速生丰产林的主要造林树种。目前,全国桉树人工林面积已超过200万hm2。随着桉树人工纯林的面积扩大,桉树病害也日趋加重,严重影响和制约桉树产业的发展。2008年至今,在云南省石林县和红河州桉树种植区发生一种病害,主要为害嫩枝、枝条和主干,发病初期,感病枝条和主干上
Eucalyptus ssp. Is one of the three fastest-growing tree species in the world (eucalyptus, poplar and pine) and the main afforestation species in south China for fast-growing and high-yield forests. At present, the national eucalyptus plantation area has more than 2 million hm2. With the eucalyptus artificial pure forest area expanded, eucalyptus disease is also increasing, seriously affecting and restricting the development of the eucalyptus industry. Since 2008, a disease has occurred in the Eucalyptus planting areas in Shilin County and Honghe Prefecture of Yunnan Province, mainly affecting young shoots, branches and trunk, early onset, susceptible shoots and trunk