内蒙古地区山杏林枝干害虫朝鲜球坚蚧发生规律  

The Occurrence Regularity of Didesmococcus koreanus,a Pest of Prunus sibirica Branches in Inner Mongolia Region

作　　者：朱旭华 吕忠良 敖特根 领宝 高岳 包文学 hu Xuhua;Lyu Zhongliang;Ao Tegen;Ling Bao;Gao Yue;Bao Wenxue(Inner Mongolia Agricultural University,Hohhot 010011,P.R.China;Forest Pest Control Station,Tongliao City;Zarut Banner Forestry Technical Service Center)

机构地区：[1]内蒙古农业大学,呼和浩特010011 [2]通辽市林业有害生物防治站 [3]扎鲁特旗林业技术服务中心

出　　处：《东北林业大学学报》2024年第4期114-118,共5页Journal of Northeast Forestry University

基　　金：高校基本科研业务费项目(RZ2300001788)。

摘　　要：为了掌握朝鲜球坚蚧(Didesmococcus koreanus)的发生及为害规律,在通辽市扎鲁特旗山杏天然次生林对不同树冠方向、不同坡向、坡位等部位的虫口密度、虫情指数、山杏林密度及土壤理化因子等进行调查研究与分析。结果表明:不同树冠方向对朝鲜球坚蚧虫口密度无显著性影响。不同坡向对其虫口密度具有显著性影响(P<0.05),虫口密度由大到小依次为南坡、西坡、东坡、北坡,而且下坡位朝鲜球坚蚧虫口密度显著高于上坡位。不同坡向对其虫情指数无显著性影响。山杏林密度与虫口密度间呈现负相关趋势;与虫情指数无相关性。土壤理化因子对虫口密度无显著性影响。In order to grasp the occurrence and damage pattern of Didesmococcus koreanus in the natural secondary forest of apricot in Zalute Banner,Tongliao City,a study was conducted.The study investigated and analyzed the insect population density,insect index,apricot forest density,and soil physicochemical factors in different tree crown directions,slope directions,and positions.The results showed that different tree crown directions had no significant impact on the insect population density of D.koreanus.However,different slope directions had a significant impact on its insect population density(P<0.05).The insect density was highest on the south slope,followed by the west slope,east slope,and north slope.Additionally,the insect population density of D.koreanus in the downhill position was significantly higher than that in the uphill position.Different slope directions had no significant impact on its insect index.There was a negative correlation trend between apricot forest density and insect population density,but no correlation with the insect index.Soil physicochemical factors had no significant impact on insect population density.

关 键 词：山杏 枝干害虫 朝鲜球坚蚧 虫情指数 

分 类 号：S763.35[农业科学—森林保护学]