黄野螟幼虫行为学特性及其防治  

Behavior Characteristics of Heortia vitessoides Larva and Its Control

作　　者：彭思颖 赵鹏飞 常明山[2] 杨娟 杨振德[1] Peng Siying;Zhao Pengfei;Chang Mingshan;Yang Juan;Yang Zhende(College of Forestry,Guangxi University,Nanning,Guangxi 530004,China;Guangxi Forestry Research Institute,Guangxi Engi-neering Research Center of Natural Enemy Breeding of Forestry Pests,Nanning,Guangxi 530002,China;Forest Pest Management and Quarantine Station of Chongzuo,Chongzuo,Guangxi 532200,China)

机构地区：[1]广西大学林学院,广西南宁530004 [2]广西壮族自治区林业科学研究院广西林业有害生物天敌繁育工程技术研究中心,广西南宁530002 [3]崇左市森林病虫防治检疫站,广西崇左532200

出　　处：《广西林业科学》2022年第2期280-284,共5页Guangxi Forestry Science

基　　金：广西林业科技推广示范项目(gl2020kt07);广西林科院基本科研业务费专项(林科202105)。

摘　　要：为探究黄野螟(Heortia vitessoides)幼虫的行为学特征,促进黄野螟无公害防治,以4龄黄野螟幼虫为研究对象,分析幼虫的取食偏好,利用野外及室内饲养观察分析黄野螟幼虫期的行为特征,采取不同温度条件分析幼虫在不同条件下的耐饥饿指数,采用浸叶法分析药剂对幼虫的致死效果。结果表明,黄野螟幼虫在防卫和化蛹时存在吐丝行为;偏好土沉香(Aquilaria sinensis)嫩叶,取食嫩叶幼虫的相对生长率和食物转化率均显著大于取食老叶幼虫。在10℃温度下,幼虫存活率最高;在25和30℃温度下,幼虫存活率较低。乙基多杀菌素和乙多·甲氧酰肼对黄野螟幼虫具有显著的毒杀效果。In order to explore behavior of Heortia vitessoides larva and promote pollution-free control, taking feeding preference of fourth instar H. vitessoides larva as materials, behavior characteristics of larva were analyzed by field and indoor feeding observation, and starvation resistance index of larva under different conditions was analyzed under different temperature conditions. Lethal effects of 7 insecticides on larva were analyzed by leaf soaking method. Results showed that there were silking behaviors at larval stage of H. vitessoides, when they felt to defend themselves and prepared for pupariation. H. vitessoides larva preferred Aquilaria sinensis young leaves. Relative growth rate and food conversion rate of larva feeding on young leaves were significantly greater than those of larva feeding on mature leaves. Survival rate of larva was the highest at 10 ℃ and lower at 25 and30 ℃. Spinetoram and spinetoram·methoxyfenozide had significant toxic effects on H. vitessoides larva.

关 键 词：森林保护 黄野螟 行为学特性 

分 类 号：S763.1[农业科学—森林保护学]