桑拟轮蚧在竹叶花椒上的发生危害与综合治理  

Occurrence and damage of Pseudaulacaspis pentagona in Zanthoxylum armatum and its control

作　　者：冯志伟[1] 闫争亮[1] 段兆尧[1] 焦晓旭[1] 

机构地区：[1]云南省林业科学院,云南昆明650204

出　　处：《中国森林病虫》2012年第3期35-37,16,共4页Forest Pest and Disease

基　　金：香港乐施会赈灾项目(CHG-0106-04D/05D)

摘　　要：桑拟轮蚧的发生危害受椒树的树龄、品种、种植模式、经营管理以及海拔和气候条件等因子影响,可通过改良品种、种植抗虫品种、加强经营管理和椒农混作等措施预防和减轻危害。危害发生后可通过刷壳涂干、更新复壮、药剂防治进行综合治理,药剂防治以吡虫啉.杀扑磷效果较好,1龄若虫发生盛期用药,防治效果达98.39%;2龄若虫介壳形成后用药,防治效果可达84.49%。Occurrence and damage of Pseudaulacaspis pentagona in Zanthoxylum armatum were related with factors such as age of trees, varieties, planting patterns, management as well as altitude and cli- mate. Measures such as improving varieties, planting resistant cultivars, strengthening management and mixed plantation of the pricklyash and crops could prevent and reduce the damage. Stem coating, rege- neration and chemical control could be applied when the damage occurred. The control effect of imida- cloprid · methidathion was 98.39% in the peak of the 1st instar larva and 84. 49% after the formation of the scale in the period of the 2nd instar larva.

关 键 词：桑拟轮蚧 竹叶花椒 发生 危害 治理 

分 类 号：S763.35[农业科学—森林保护学]