CAJ | 학술논문

白蜡吉丁肿腿蜂Sclerodermus pupariae Yang et Yao（膜翅目Hymenoptera：肿腿蜂科Bethylidae）是防治栗山天牛Massicus raddei Blessig幼龄幼虫的优秀天敌。为了明确白蜡吉丁肿腿蜂防治栗山天牛幼虫的最佳虫期和放蜂比例，我们首先在室内研究了不同放蜂比例对栗山天牛幼龄幼虫的防治效果，然后研究了林间白蜡吉丁肿腿蜂对栗山天牛幼虫的寄生效果，并测定了该肿腿蜂的过冷却点。结果表明，释放白蜡吉丁肿腿蜂防治栗山天牛最佳虫期为栗山天牛1～2龄幼虫期，其寄生率和致死率均较高。在栗山天牛为害较重的林区，释放白蜡吉丁肿腿蜂防治栗山天牛的最佳虫蜂比为1：3，其寄生率最高，而且白蜡吉丁肿腿蜂雌蜂在补充营养过程中会直接致死较多幼虫，其产生的子代数量也最多，有利于白蜡吉丁肿腿蜂在林间建立稳定的种群。在栗山天牛为害程度较轻的林区，按虫蜂比1：1释放即可。经测定，白蜡吉丁肿腿蜂林间种群的成虫过冷却点平均为-26.2℃，表明白蜡吉丁肿腿蜂能够在东北林区栗山天牛发生林分安全越冬。
백사길정종퇴봉Sclerodermus pupariae Yang et Yao（막시목Hymenoptera：종퇴봉과Bethylidae）시방치률산천우Massicus raddei Blessig유령유충적우수천활。위료명학백사길정종퇴봉방치률산천우유충적최가충기화방봉비례，아문수선재실내연구료불동방봉비례대률산천우유령유충적방치효과，연후연구료림간백사길정종퇴봉대률산천우유충적기생효과，병측정료해종퇴봉적과냉각점。결과표명，석방백사길정종퇴봉방치률산천우최가충기위률산천우1～2령유충기，기기생솔화치사솔균교고。재률산천우위해교중적림구，석방백사길정종퇴봉방치률산천우적최가충봉비위1：3，기기생솔최고，이차백사길정종퇴봉자봉재보충영양과정중회직접치사교다유충，기산생적자대수량야최다，유리우백사길정종퇴봉재림간건립은정적충군。재률산천우위해정도교경적림구，안충봉비1：1석방즉가。경측정，백사길정종퇴봉림간충군적성충과냉각점평균위-26.2℃，표명백사길정종퇴봉능구재동북림구률산천우발생림분안전월동。
Sclerodermus pupariae Yang et Yao (Hymenoptera:Bethylidae) is a parasitoid on Agrilus planipennis (Coleoptera:Buprestidae), first found in Tianjin Municipality. The parasitoid is an effective biological agent for young larvae of the oak longhorned beetle, Massicus raddei (Coleoptera: Cerambycidae), a serious pest in northeastern China. For applying it in biocontrol of the cerambycid, we conducted the studies on dertermining the proper host developing stage for releasing it and the releasing number, , as well as the supercooling point of the parasitoid. The results showed that the proper host stages for releasing the parasitoid were the first and second instars of M. raddei larvae, the most effective releasing number rate was 1:3 (host:parasitoid) under high pest population , or with the rate 1:1 whenthe pest population was low. The supercooling point of the parasitoid adults in forest stands was-26.2 ℃. The present study indicates that the parasitoid is a superior biocontrol agent of the oak longhorned beetle in its young larval stage.