The occurrence regularity of psyllid in Haloxylon spp and its influencing factors
The occurrence regularity of psyllid in Haloxylon spp and its influencing factors
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DOI：
10.5846/stxb201112101892
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发表时间：
2012
影响因子：
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通讯作者：
李粉莲 Li Fenlian;吴雪海 Wu Xuehai;王佩玲 Wang Peiling;梁虎军 Liang Hujun;王信 Wang Xin;王立军 Wang Lijun;张建平 Zhang Jianping
中科院分区：
文献类型：
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作者：
李粉莲 Li Fenlian;吴雪海 Wu Xuehai;王佩玲 Wang Peiling;梁虎军 Liang Hujun;王信 Wang Xin;王立军 Wang Lijun;张建平 Zhang Jianping
在新疆古尔班通古特沙漠的梭梭（Haloxylon ammodendron）和白梭梭（H.persicum）上发现了叶苞瘿，其发生率在90%以上，由4种木虱引起：梭梭属（Haloxylon spp.）每年有两个发病高峰，其中大果梭梭（Caillardia robusta）、天蓝梭梭（C.azurea）、小果梭梭（C.nana）和小果梭梭（C.notata）为中国新记录种。梭梭在5月中旬和6月中旬，白梭梭在5月中旬和7月下旬至8月上旬，沙生木虱在沙丘间发生量最大，沙丘边缘和砾石荒漠间发生量差异不显著;结果表明，白背飞虱发生量在低丘比高丘严重，阳坡比阴坡严重，虫瘿发生率随树龄的增加而沿着增加，地形、树势、朝向和地形坡度对白背飞虱发生有显著影响，本文研究了古尔班通古特沙漠梭梭和白梭梭木虱的发生规律及其与周围环境的关系，为保护沙漠生态环境提供依据。
The leafy-bracted galls were observed in the Haloxylon ammodendron and H.persicum in the Gurbantunggut Desert of Xinjiang.Its incidence rate was above 90% which was caused by four species of psyllids: Caillardia robusta,C.azurea,C.nana and C.notata respectively,and the latter two species were newly recorded from China.There were two incidence peaks of Haloxylon spp every year,respectively in the mid-May and mid-June in H.ammodendron and in mid-May and late July to early August in H.persicum.The occurrence amount of psyllids in H.ammodendron was the most serious at interdune and there was no much significance between dunes edges and gravel desert;The occurrence amount of psyllids in H.persicum was more serious at low dunes than that at high dunes,and sunny slope than shady slope.Incidence rate of the galls increased along with the tree-ages.Topography,tree vigour,direction and topography*slope have significant influences on the occurrence of psyllids,but their interactions have no apparent effects on the galls.The occurrence regularity of psyllids in H.ammodendron and H.persicum and psyllids′ relations with surrounding environment in the Gurbantunggut Desert were studied in this paper,which provide a basis for protecting desert ecological environments.