光肩星天牛对沙枣和新疆杨的偏好性  

Preference of Anoplophora glabripennis to Populus alba var.pyramidalis and Elaeagnus angustifolia

作　　者：邵鹏鹏 杨兵军 苏智[2] 孙佐翔 王卓 刘宇婷 魏建荣[1] SHAO Peng-peng;YANG Bing-jun;SU Zhi;SUN Zuo-xiang;WANG Zhuo;LIU Yu-ting;WEI Jian-rong(School of Life Science,Institute of Life Science and Green Development,Hebei University,Baoding 071002,Hebei,China;Experimental Center of Desert Forest,Chinese Academy of Forestry,Denkou 015200,Inner Mongolia,China)

机构地区：[1]河北大学生命科学学院,生命科学与绿色发展研究院,河北保定071002 [2]中国林业科学研究院,沙漠林业实验中心,内蒙古磴口015200

出　　处：《林业科学研究》2023年第4期122-128,共7页Forest Research

基　　金：国家自然科学基金项目(32171798;32271891);中国林科院专项资金(CAFYBB2018MB005)。

摘　　要：[目的]新疆杨是目前我国西北地区防护林建设的首选树种,长期单一化的种植模式使其受到了光肩星天牛的较大危害。沙枣对光肩星天牛有一定的诱杀效应,但是否可用于保护新疆杨尚不清楚。[方法]本研究通过测试光肩星天牛成虫对新疆杨和沙枣枝叶气味偏好性和树干产卵试验,以及树木挥发物的触角电位活性测定等,初步评估了沙枣作为保护树种的可行性。[结果]1)当新疆杨vs沙枣枝叶时,雌虫偏好沙枣枝叶气味,占作出选择成虫数的80.65%,雄虫对二者选择无显著差异;2)雌虫触角对新疆杨挥发物中的叶醇和乙酸叶醇酯以及沙枣挥发物中3-蒈烯、乙酸叶醇酯和叶醇表现出电生理活性,新疆杨和沙枣挥发物中叶醇含量之比为2.66:1,乙酸叶醇酯之比为1.19:1,因其含量不同所表现出来的电生理活性刺激强度也不同;3)室内试验新疆杨vs沙枣树干时,雌虫偏好在沙枣上产卵,每个供试树段上的刻槽数达18±1.73个,但单选试验中在新疆杨上的有效产卵率高于沙枣,分别为75.00%和58.33%;4)在林间寄主树干上的套笼试验表明,雌虫在无选择条件下在二者上的刻槽数无显著差异,但幼虫在沙枣上均未成活。[结论]上述结果证实了沙枣对光肩星天牛成虫有一定引诱性,但沙枣在一定区域内是否会有效控制光肩天牛种群的增长,还需进一步的研究。[Objective]Populus alba var.pyramidalis is the preferred tree species for the construction of the Protection Forest in northwestern China.However,the long-term single tree species planting has caused the outbreak of the wood borer Anoplophora glabripennis(Asian longhorned beetle,ALB).There was reports that Elaeagnus angustifolia had‘attract and kill’effect on ALB,but it was unclear whether it could be used for protecting P.alba var.pyramidalis.[Method]In this study,we evaluated the possibility of E.angustifolia for protecting P.alba var.pyramidalis by choice experiments of ALB adults’response to host leaves and trunks of P.alba var.pyramidalis and E.angustifolia both in the laboratory and in the field.The volatiles could stimulate the electrophysiological responses of female antennae were also screened out from both tested host tree species.[Result]1)When P.alba var.pyramidalis leaves vs E.angustifolia leaves,ALB females preferred E.angustifolia,and accounted for 80.65%of adults made choice,while males did not show significant preference;2)cis-3-hexen-1-ol and cis-3-hexenyl acetate from P.alba var.pyramidalis,and cis-3-hexen-1-ol,cis-3-hexenyl acetate,3-carene from E.angustifolia could arise the antennae responses of female;the ratio of cis-3-hexen-1-ol contents between P.alba var.pyramidalis and E.angustifolia was 2.66:1,and the ratio of cis-3-hexenyl acetate contents between two tree species was 1.19:1;The intensity of electrophysiological activity stimulation varied due to their different content;3)when tested P.alba var.pyramidalis stem vs E.angustifolia stem in the laboratory,the ALB female preferred gnawing egg niche on E.angustifolia and the number of egg niche could reach to 18±1.73 per stem,but the percent of effective oviposition(eggs laid in the egg niche)on the P.Alba var.pyramidalis(75.00%)in the single choice experiment were higher than that on E.angustifolia(58.33%);4)The cage experiments on the trunk of the host trees in the forest showed that there was no significant difference in the numb

关 键 词：光肩星天牛 新疆杨 沙枣 寄主选择 防护林 

分 类 号：S763.38[农业科学—森林保护学]