核桃扁叶甲生物学特性及三种药剂毒力测定  

Biology of Gastrolina depressa in Harbin and toxicity assay of three chemicals

作　　者：姜云宵 李响[1] 高鑫博 李文浩 韩勍 李曼毓 景天忠[1] JIANG Yunxiao;LI Xiang;GAO Xinbo;LI Wenhao;HAN Qing;LI Manyu;JING Tianzhong(College of Forestry,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040

出　　处：《辽宁林业科技》2024年第1期12-15,65,共5页Liaoning Forestry Science and Technology

基　　金：黑龙江省自然科学基金(LH2022C014);中央高校基本科研业务费项目(2572020DR09)。

摘　　要：核桃扁叶甲在哈尔滨地区对核桃楸人工林造成了重大损失,为有效防治此害虫,该研究观测了哈尔滨地区核桃扁叶甲的生物学特性,并测定了高效氯氰菊酯、阿维菌素和吡虫啉3种杀虫剂对核桃扁叶甲成虫的毒力。结果表明:核桃扁叶甲在哈尔滨地区1年发生1代,幼虫从5月中旬开始孵出,一直蔓延到6月中旬。蛹和成虫始见于6月上旬。核桃扁叶甲的雌雄性比为1︰1,其交配时间为11~15时,在14时左右达到峰值,产卵发生在14~17时,在15时达到顶峰。高效氯氰菊酯对其毒力最强,其次是阿维菌素,吡虫啉毒力最弱。建议在防治时优先选择阿维菌素,而高效氯氰菊酯只在应急时使用。Gastrolina depressa has caused significant damage to Juglans mandshurica plantations in Harbin.To effectively control this pest,the biological characteristics of G.depressa in Harbin were observed,and the toxicity of cypermethrin,avermectin and imidacloprid to the adult of G.depressa was determined.The results showed that G.depressa exhibited a single generation per year in Harbin with larvae hatching from mid-May to mid-June.The pupae and adults were first observed in early June.The female-to-male ratio of G.depressa was 1∶1 with mating occurring between 11 am to 3 pm peaking at approximately 2 pm,followed by spawning from 2 pm to 5 pm reaching its peak at 3 pm.Among the tested pesticides,cypermethrin demonstrated the highest toxicity towards G.depressa,followed by avermectin and imidacloprid.Based on these results,it is recommended that avermectin be prioritized for pest control purposes,while cypermethrin should only be used as an emergency measure.

关 键 词：核桃扁叶甲 生活史 毒力测定 LC50值 

分 类 号：S763.38[农业科学—森林保护学]