摘要
明确玉溪市烤烟-油菜轮作田昆虫群落结构及时间动态,为烤烟有害生物综合管理提供参考。2016年用马来氏网在玉溪市烤烟-油菜轮作田对昆虫种类及数量进行调查。结果表明,烤烟-油菜轮作田共采集昆虫5089头,隶属9目26个类群。植食性优势类群为叶蝉类、蛾类,寄生性优势类群为姬蜂和茧蜂,捕食性优势类群为捕食性食蚜蝇。烤烟-油菜轮作田主要害虫蛾类发生高峰期6—7月、叶蝉发生高峰期在9月,主要天敌姬蜂类发生高峰期在9月、茧蜂发生高峰期在6月、捕食性食蚜蝇发生高峰期在4—5月。烤烟-油菜轮作田昆虫群落多样性指数、丰富度指数、均匀性指数6月最高,分别为1.9850、2.7620、1.0000;优势度指数3月最高为0.8840;S_s/S_i稳定性指数在0.0088～0.1385,S_n/S_p稳定性指数在0.7142～2.000,S_s/S_i和S_n/S_p稳定性指数8月最高。6—8月烤烟旺长期至采收期昆虫群落结构最稳定。
The paper aims to clarify the temporal dynamics and structure of insect community in the rotation field of flue-cured tobacco and oilseed rape,and provide a reference for pest integrated management of fluecured tobacco.In 2016,the insect species and numbers were investigated by Malaise trap in the rotation field of flue-cured tobacco and oilseed rape in Yuxi City.The results showed that a total of 5089 insect samples were collected and the insects belonged to 9 orders,26 taxa.Leafhopper and phalaenae were the dominant species of phytophagous insects.Ichneumon and braconidae were the dominant species of parasitic insects.Predaceous syrphidae was the dominant species of predacious insects.Population peak of phalaenae was from June to July,population peak of leafhopper was September.Population peak of ichneumon was September.Population peak of braconidae was June.Population peak of predaceous syrphidae was from April to May.The diversity index,richness index and evenness index reached peak in June in the rotation field,the maximum was 1.9850,2.7620 and 1.0000,respectively.The dominance index reached peak in March,the maximum was0.8840.Ss/Si(the number of species divided by the number of individuals)was between 0.0088 and 0.1385,Sn/Sp(the number of natural enemy species divided by the number of phytophagous species)was between 0.7142 and0.2000.Ss/Siindex and Sn/Spindex reached peak in August.The structure of insect community was the most stable from June to August.
作者
张红梅
余砚碧
计思贵
王燕
杨海林
吴迪
陈福寿
张立猛
Zhang Hongmei;Yu Yanbi;Ji Sigui;Wang Yan;Yang Hailin;Wu Di;Chen Fushou;Zhang Limeng(Institute of Agriculture Environment and Resources,Yunnan Academy of Agricultural Sciences,Kunming 650205;Yuxi Branch,Yunnan Tobacco Company/Engineering Research Center of Biological Control on Tobacco Diseases and Pests,CNTC,Yuxi Yunnan 653100;Yunnan Tobacco Company of China National Tobacco Corporation,Kunming 650011)
出处
《中国农学通报》
2019年第14期122-128,共7页
Chinese Agricultural Science Bulletin
基金
中国烟草总公司云南省公司"烟蚜茧蜂规模化释放生态效应及其应用研究"(2015YN14)
关键词
烤烟-油菜轮作田
昆虫群落结构
时间动态
the rotation field of flue-cured tobacco and oilseed rape
structure of insect community
temporal dynamics
