花绒寄甲对松材线虫病疫情防控效果研究  

Study on the prevention and control effects of Dastarcus helophoroides on pine wilt disease

作　　者：谭昀 李萍 吴宗仁 肖斌 吴远来 温德才 Tan Yun;Li Ping;Wu Zongren;Xiao Bin;Wu Yuanlai;Wen Decai(Jiangxi Forestry Pest Control and Quarantine Center,Nanchang Jiangxi 330038,China;Changjiang District in Jingdezhen City Forestry Bureau,Jingdezhen Jiangxi 333000,China;Yongfeng County Forestry Bureau,Ji'an Jiangxi 331500,China)

机构地区：[1]江西省林业有害生物防治检疫中心,江西南昌330038 [2]景德镇市昌江区林业局,江西景德镇333000 [3]永丰县林业局,江西吉安331500

出　　处：《南方林业科学》2024年第4期52-56,共5页South China Forestry Science

基　　金：江西省林业有害生物防治检疫中心林业有害生物防治科研专项资金项目。

摘　　要：为研究花绒寄甲对不同程度松材线虫病疫情的防控效果,在江西省轻、中、重度疫区选择6个试验点,连续3 a在松褐天牛羽化前释放花绒寄甲成虫,通过调查林间花绒寄甲寄生情况、诱捕松褐天牛数量、试验点秋季马尾松病死树数量,统计分析花绒寄甲对不同程度松材线虫病疫情的防控效果。结果表明,各试验点在持续释放花绒寄甲后,林间松褐天牛成虫数量总体上呈现出下降趋势;重度发生区(永丰县)、中度发生区(广丰区和遂川县)、轻度发生区(昌江区、井冈山市、永新县)各试验组马尾松病死树数量年最高校正减退率分别为36.75%、81.00%、68.54%、72.13%、68.38%、68.61%。花绒寄甲可有效减少林间松褐天牛数量,降低松材线虫病的传播几率,在轻、中度疫区能间接达到减少林间因松材线虫病致死松树数量的效果,在轻度疫区防效显著,在重度疫区防效不显著。To explore the prevention and control effects of Dastarcus helophoroides on different degrees pine wilt disease.Experimental sites were set up in light、medium and severe epidemic areas,adult D.helophoroides were released before the emergence of the Monochamus alternatus for more than three consecutive years,The parasitic percentages of M.alternatus larvae parasitized by D.helophoroides,population of trapped M.alternatus in the forest,and the number of death pine trees in autumn were surveyed.The results showed that M.alternatus were parasitized after continuous release D.helophoroides at each experimental site,the overall trend of adult D.helophoroidesin the forest was declining.The annual highest positive decline rates of the number of dead trees of Pinus massoniana in the experimental groups of severe occurrence area(Yongfeng County),moderate occurrence area(Guangfeng District and Suichuan County),and mild occurrence area(Changjiang District,Jinggangshan City,Yongxin County)were 36.75%,81.00%,68.54%,72.13%,68.38%and 68.61%,respectively.D.helophoroides could control the population of M.alternatu,reduce the probability of transmission of pine wilt disease,indirectly reduce the number of pine trees died from pine wilt disease in light and medium epidemic areas.The control effect is significant in light epidemic areas,but not significant in severe epidemic areas.

关 键 词：花绒寄甲 松材线虫病疫区 疫情防控 

分 类 号：S763[农业科学—森林保护学]