食物因素对暗黑鳃金龟一、二龄幼虫历期及成活率的影响  

Effects of food factors on the period and survival rate of the first and second stage larvae of Holotrichia parallela

作　　者：刘艳涛[1] 席国成[2] 胡铁欢[2] LIU Yan-tao;XI Guo-cheng;HU Tie-huan(Department of Food Bioengineering,Cangzhou Vocational College of Technology,Cangzhou 061001,Hebei,China;Cangzhou Academy of Agriculture and Forestry Sciences,Cangzhou 061001,Hebei,China)

机构地区：[1]沧州职业技术学院食品生物工程系,河北沧州061001 [2]沧州市农林科学院,河北沧州061001

出　　处：《湖北农业科学》2020年第17期69-71,149,共4页Hubei Agricultural Sciences

基　　金：沧州市“三三人才工程”资助项目。

摘　　要：在暗黑鳃金龟(Holotrichia parallela)成虫及幼虫室内饲养方法的基础上,测定不同食物对暗黑鳃金龟一、二龄幼虫成活率和历期的影响。结果表明,不同食物对暗黑鳃金龟幼虫一、二龄幼虫成活率影响显著,喂食花生根成活率最高,喂食棉花根、花生块和谷子根时成活率较低。喂食马铃薯块时一龄幼虫发育速度快、集中度高,而喂食棉花根时一龄幼虫发育速度最慢,历期最长;喂食马铃薯块、甘薯块和花生根的二龄幼虫发育速度较快,喂食棉花根和谷子根的二龄幼虫发育速度较慢,历期较长。在该研究基础上,通过调整田间布局和种植结构,可延长暗黑鳃金龟幼虫发育历期、提高死亡率、减少群体数量,减轻其对花生的危害。Based on the indoor rearing methods of adult and larvae,the effects of different foods on the survival rate and the duration of the first and second instar larvae of Holotrichia parallela were determined.The results showed that the survival rates of the first and second instar larvae were significantly affected by different foods.The survival rates of the first and second instar larvae when they were fed with peanut roots were the highest,and it was lower when they were fed with cotton roots,peanut pieces and millet roots.When the first instar larvae was fed with potatoes,the development speed was fast and the concentration was high,while the larvae fed with cot⁃ton roots grew slowest and lasted the longest.The second instar larvae fed with potato,sweet potato and peanut roots developed faster,while the second instar larvae fed with cotton and millet roots developed slower and lasted longer.On the basis of this study,by adjust⁃ing the field layout and planting structure,the development duration of the larvae,the mortality rate,the population number and the harm to peanuts could be prolonged.

关 键 词：暗黑鳃金龟(Holotrichia parallela) 食物 历期 成活率 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治]