小线角木蠹蛾越冬幼虫研究  

Study on Overwintering Larvae of Streltzoviella insularis

作　　者：信晓萌 韩世德 任贻刚 任大川 孟祥凯 王艳波 牟振强 杨丕俊 XIN Xiaomeng;HAN Shide;REN Yigang;REN Dachuan;MENG Xiangkai;WANG Yanbo;MU Zhenqiang;YANG Pijun(Weifang Forestry Development Center,Weifang Shandong 261041;Shandong Qinghua Garden Desingn Limited,Weifang Shandong 261000;Luo Cheng Burau for Natural Resources and pianning Shouguang,Shouguang Shandong 262704;Shandong Shouguang Forestry Development Center,Shouguang Shandong 262700;Shouguang state-owned Mechanical Forest Farm of Shandong Shan dong Province,Shouguang Shandong 262716)

机构地区：[1]潍坊市林业发展中心,山东潍坊261041 [2]山东青华园林设计有限公司,山东潍坊261000 [3]寿光市自然资源和规划局洛城所,山东寿光262704 [4]山东省寿光市林业发展中心,山东寿光262700 [5]寿光市国有机械林场,山东寿光262716

出　　处：《山东林业科技》2024年第5期60-65,共6页Journal of Shandong Forestry Science and Technology

摘　　要：为了解小线角木蠹蛾幼虫越冬情况,对小线角木蠹蛾幼虫进行越冬调查,通过测量越冬幼虫头壳宽,确定越冬幼虫的龄数,称重,观察越冬场所分布、越冬幼虫姿态和头部朝向。结果表明:小线角木蠹蛾幼虫第1次越冬以5龄为主,第2次越冬以12龄为主。非滞育幼虫体重都大于滞育(越冬)幼虫的体重。越冬幼虫用粪屑建造椭圆形小室,越冬小室分布在虫道顶端的有78.3%、在虫隧道旁边的有14.6%、在虫道内的有7.1%。幼虫在小室内的越冬姿态87.4%的幼虫呈“1”字形、8.2%的呈“L”形、4.4%的呈“C”形。越冬时97.1%的幼虫头部向下。In order to understand the overwintering situation of Streltzoviella insularis larvae,the overwintering investigation was carried out on Streltzoviella insularis larvae the distribution of overwintering sites,the postures of overwintering larvae and the head orientation were observed.The results showed that the 5th and 12th instar larvae overwintered for first time,respectively.The body weight of non-diapause larvae was larger than that of diapause(overwintering)larvae The overwintering larvae built oval chambers with dung,and 78.3%of the chambers were located at the top,14.6%at the side of the worm tunnel,and 7.1%in the worm tunnel.The wintering posture of larvae in a chamber was assumed as,87.4%of the larvae in the shape of"1",8.2%in the shape of"L"and 4.4%in the shape of"C",97.1%of the larvae had their heads down when overwintering.

关 键 词：小线角木蠹蛾 越冬幼虫 幼虫体重 越冬龄期 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]