夹竹桃是一种广泛应用于园林观赏的重要花卉。但由于丛枝病的发生,造成了死亡,影响了景观效果。该病在夹竹桃栽植地区均有发生,其中以红花夹竹桃(Nerium indicum Mill)尤为严重,白花夹竹桃(N. indicum cv. Paihua)少发病,黄花夹竹桃(Thevetia peruviana)抗病。在广州,红花夹竹桃的发病率达60％以上,感病指数30％,严重的整株枯死。在深圳市水库公园的红花夹竹桃发病率达100％,死亡率达70％。此病多危害5年生以上的老树,1—5年生的植 Oleander is an important flower widely used in ornamental gardens. However, due to the occurrence of the broom disease, death was caused and the landscape effect was affected. The disease occurred in oleander planting area, especially in Nerium indicum Mill, less incidence of N. indicum cv. Paihua, Thevetia peruviana, Disease resistance. In Guangzhou, the incidence of Rhodiola oleander over 60%, 30% of the disease index, severe whole plant dead. In Shenzhen Reservoir Park safflower oleander incidence of 100%, the mortality rate of 70%. The disease endanger more than 5-year-old trees, 1-5 years of planting