摘要
林间开展了释放管氏肿腿蜂Sclerodermus guani Xiao et Wu和花绒寄甲Dastarcus helophoroides Fairmaire防治松褐天牛Monochamus alternatus Hope试验,结果表明:释放管氏肿腿蜂防治松褐天牛最佳益害比为4∶1,对松褐天牛寄生率达31.25%;释放花绒寄甲卵防治松褐天牛最佳益害比为8∶1,对松褐天牛寄生率达62.77%;释放花绒寄甲成虫最佳益害比为1∶1,对松褐天牛寄生率达70.69%。天敌释放区诱捕器诱捕到的松褐天牛成虫明显少于对照区。
The author released Sclerodermus guani and Dastarcus helophoroides to control the pine saw-yer beetle in Huaxi forest park of Yiwu. The results showed that the optimum enemy-pest ratio of releasing S. guani was 4∶ 1,its parasitism rate to larva of Monochamus alternatus reached 31. 25%; the optimum ratio of releasing D. helophoroides eggs was 8 ∶ 1 with parasitism rate to pupa of the pest being62. 77%,and the optimum ratio of releasing D. helophoroides adults was 1 ∶ 1 with average parasitism being 70. 69 %. The trapped number of M. alternatus adults in releasing area was obviously less than that in contrast area.
作者
吴东生
高尚坤
唐艳龙
WU Dongsheng et al(Niansanli Street Subdistrict Office Forestry Station of Yiwu, Yiwu 322000 ,Chin)
出处
《中国森林病虫》
北大核心
2017年第2期10-12,15,共4页
Forest Pest and Disease
基金
中央级公益性科研院所基本科研业务费专项资金(CAFRIFEEP201404)
关键词
松褐天牛
管氏肿腿蜂
花绒寄甲
天敌释放
益害比
Monochamus alternatus
Sclerodermus guani
Dastarcus helophoroides
enemy releasing
enemy-pest ratio
