文献类型：期刊文献

中文题名：德清真片胸叶蜂在毛竹上的产卵偏好性

英文题名：Oviposition Preference of Eutomostethus deqingensis(Hymenoptera:Tenthredinidae)on Phyllostachys edulis

作者：方林鑫[1,2] 张守科[1] 贾克峰[3] 叶碧欢[4] 张威[1] 舒金平[1] 王浩杰[1] 徐天森[1]

第一作者：方林鑫

通信作者：Jia, Kefeng

机构：[1]中国林业科学研究院亚热带林业研究所,杭州311400;[2]南京林业大学,南京210037;[3]浙江省衢州市衢江区林业局,衢州324000;[4]浙江省林业科学研究院,杭州311400

年份：2021

卷号：57

期号：1

起止页码：131-139

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;EI(收录号：20211210110250);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：“十三五”国家重大研发计划课题(2016YFD060090301)。

语种：中文

中文关键词：德清真片胸叶蜂;产卵选择;理化性状;营养元素;防治

外文关键词：Eutomostethus deqingensis;Phyllostachys edulis;oviposition preference;physicochemical characteristics;control

分类号：S718.7

摘要：【目的】德清真片胸叶蜂是我国南方竹区重要的竹子害虫之一,研究该虫的产卵习性,分析不同生境与寄主营养条件对其产卵选择的影响,为其防控提供理论支持。【方法】在德清真片胸叶蜂发生区内,选取不同竹林结构及立地条件的毛竹林样地,随机调查不同年龄毛竹各轮枝条的卵粒数量;测定新、老竹叶片含水率、上下表皮厚度及营养元素(N、Na、K、C)含量,利用逐步判别分析法分析各因子与德清真片胸叶蜂产卵行为的关系。【结果】1)在同一竹株上,中高部盘枝叶片上的产卵量最多;坡底竹叶上的着卵量(3835.0±385.2粒)极显著高于坡顶竹叶上的卵量(864.5±215.5粒,P<0.01);2)竹龄对德清真片胸叶蜂的产卵选择有极显著的影响,新竹(1年生)上的产卵量(3954.6±1247.4粒)显著高于老竹(2年生,144.3±49.3粒,P<0.001),这可能与新、老竹叶的含水率有关,而与新、老竹叶片表皮的厚度无关(P>0.05);3)新、老叶片中C、K含量差异不显著,而N、Na含量差异显著(P<0.01);N含量为影响德清真片胸叶蜂产卵的主导因子,Na次之。【结论】德清真片胸叶蜂偏好在坡底、盘枝高度中上的新竹叶上产卵。竹龄、竹叶含水率及叶片N、Na含量与该虫产卵选择密切相关。在进行德清真片胸叶蜂防治时,可针对性地对当年新竹进行竹腔药剂注射,可达到事半功倍的防治效果。
【Objective】Phyllostachys edulis is a main bamboo species in term of both economic and ecological benefits and the sawfly Eutomostethus deqingensis,a defoliator pest,severely attacks the bamboo.It is helpful for effective control the pest by surveying its oviposition habits in different ecological habitats and the effects of host nutritional conditions on its ovipasition selection.【Method】The bamboo forests with different structure and environmental conditions were randomly selected as sample sites,then the damage rate of E.deqingensis and the total number of eggs laid in each bamboo were investigated.Meanwhile,the factors,water content,the content of nutrient elements(N,Na,K,C),and the thickness of upper and lower epidermis of bamboo leaves were measured.Finally,the relationships between the factors with oviposition preference of E.deqingensis adults were analyzed by Stepwise Discriminant Analysis.【Result】1)Most eggs were laid on the leaves in the middle and high branches of the bamboo,and the total number of eggs on the leaves of the bamboos grown in the slope bottom(3835.0±385.2 per bamboo)was significantly higher than that in the slope upper part(864.5±215.5 per bamboo,P<0.01).2)Bamboo age had a significant impact on oviposition preference of E.deqingensis,and the number of eggs on leaves of one-year-old bamboo(3954.6±1247.4)was significantly higher than that of two-year-old bamboo(144.3±49.3,P<0.001).The oviposition preference showed significant positive correlation with the water content of bamboo leaves(54.90%for newly grown leaves and 51.99%for two-year-old leaves,P<0.05),no significant correlation with the thickness of leaf epidermis(P>0.05).3)There were significant differences in N and Na content(P<0.01)between newly grown leaves and two-year-old leaves,while no significant differences in C and K content were found.The result analyzed by Stepwise Discriminant Analysis showed that N content was the dominant factor affecting oviposition preference of E.deqingensis,followed by Na.【Conclusion】E.deqingensis adults prefer to laying eggs in the newly grown leaves of the bamboos growing at the bottom of slope,especially the middle part of the bamboos.The age,water content,and the content of N and Na of leaves are significantly related to the oviposition preference of this insect.The pesticide-injecting in the newly grown bamboo cavity is an effective method to control E.deqingensis.