Wenneker M, Janse J D, De Bruine J A
Applied Plant Research, Wageningen UR, P.O. Box 200, 6670 AE Zetten, The Netherlands.
Commun Agric Appl Biol Sci. 2011;76(4):575-8.
In the Netherlands, bacterial canker in plum trees (Prunus domestica) is a serious and recent problem in plum production. It is caused by Pseudomonas syringae pathovars syringae and morsprunorum. The trunks of the affected plum trees are girdled by bacterial cankers resulting in sudden death of infected trees in 3-4 years after planting. Disease incidences can be very high, and sometimes complete orchards have to be removed. Recently, plum cultivation in the Netherlands has changed from a relatively extensive into an intensive cultivation. However, due to the risks of losses of trees due to bacterial canker, growers are reluctant to plant new plum orchards. In general nurseries and fruit growers are not familiar with bacterial diseases and lack knowledge in order to prevent infections. Therefore, control strategies to manage plum decline have to be developed.
在荷兰，李树（欧洲李）细菌性溃疡病是李树生产中一个严重且新出现的问题。它由丁香假单胞菌丁香致病变种和李痘致病变种引起。受感染李树的树干被细菌性溃疡环绕，导致种植后3至4年感染树木突然死亡。病害发生率可能非常高，有时整片果园都不得不被移除。最近，荷兰的李树种植已从相对粗放型转变为集约型种植。然而，由于细菌性溃疡病导致树木损失的风险，种植者不愿种植新的李树果园。一般来说，苗圃和果农不熟悉细菌性病害，缺乏预防感染的知识。因此，必须制定管理李树衰退的控制策略。
