岷县国槐桑白盾蚧危害调查  

A Report on Damage of Pseudaulacaspis pentagona on Sophora japonica in Minxian

作　　者：车红艳 张见席 CHE Hong-yan;ZHANG Jian-xi(Minxian Forestry Bureau,Minxian Gansu 748400,China)

机构地区：[1]岷县林业局,甘肃岷县748400

出　　处：《甘肃林业科技》2018年第2期20-23,共4页Journal of Gansu Forestry Science and Technology

摘　　要：为了掌握桑白盾蚧为害国槐行道树的规律和危害状况,用田间连续观察和室内饲养相结合的方式、样地调查的方式开展研究。结果表明,在岷县县城,桑白盾蚧1年发生2代,5月中、下旬是化学药物防治该虫的关键期;国槐行道树桑白盾蚧危害比较普遍严重,呈扩散蔓延加重趋势;桑白盾蚧主要为害国槐2~6年生枝条,其间随枝龄增加为害程度有加重趋势;桑白盾蚧具有隐蔽寄生为害的习性。In order to understand the law and the harm situation of Pseudaulacaspis pentagona on Sophora japonica, the paper carries out research based on the continuous field observation combined with indoor feeding and sample land survey. The results showed that the annual occurrence of the scale was 2 generations in Minxian county, the middle and second half of May is the critical period for chemical drugs to control the insect; The pest damage of Pseudaulacaspis pentagona on Sophora japonica is more serious, and it tends to spread more and more seriously; The Pseudaulacaspis pentagona is mainly harmful to locust for 2~6 years and the degree of damage increased with the age of branches; The Pseudaulacaspis pentagona have a habit of hiding and parasitizing.

关 键 词：岷县 国槐 桑白盾蚧 危害 

分 类 号：S763.722.6[农业科学—森林保护学]