中国生物防治学报2025，Vol.41Issue(4)：760-768,9.DOI:10.16409/j.cnki.2095-039x.2025.09.001
不同种植方式番茄地番茄潜叶蛾和优势捕食性天敌动态及时间生态位
Dynamics and Temporal Niche of Tuta absoluta and Dominant Predators in Tomato Fields under Different Planting Modes
摘要
Abstract
The effects of different planting modes of tomato on the population dynamics of Tuta absoluta and its natural enemies were investigated in open field and greenhouse planting modes in Yuanmou County,Yunnan Province.The population dynamics of T.absoluta and its natural enemies were systematically investigated by 5-point sampling method,and the dominant natural enemies of T.absoluta were screened by dominance index and correlation index.The results showed that the adults and larvae T.absoluta on greenhouse tomatoes reached 10.53 per sticky trap and 8.27 per plant,respectively at the peak date,the highest sex ratio was 2.31,the damage area per leaf reached 41.00％,and the fruit damage rate reached 72.60％,which were all significantly higher than those of the open fields.Five dominant predatory natural enemy species,Orius similis,Nesidiocoris tenuis,Harmonia axyridis,Coccinella septempunctata,and Araneus ventricosus,were found in both of the planting modes.N.tenuis had the largest niche overlap index and correlation with T.absoluta,and the highest population dominance among the predator species.However,the dominance,niche overlap index and correlation degree of the other four natural enemy species were higher in the open field planting than in the greenhouse planting.Planting tomatoes in greenhouses in the areas of heavy T.absoluta damage can lead to T.absoluta outbreak to certain extent,while planting tomatoes in the open field can help increase the population size of natural enemies.关键词
番茄潜叶蛾/优势天敌/种群动态/时间生态位/关联度Key words
Tuta absoluta/dominant natural enemies/population dynamics/temporal niche/degree of association分类
农业科技引用本文复制引用
周顺文,段永杰,蒋正雄,孙英,李明江,张金龙,杨念,陈国华,张晓明..不同种植方式番茄地番茄潜叶蛾和优势捕食性天敌动态及时间生态位[J].中国生物防治学报,2025,41(4):760-768,9.基金项目
国家重点研发计划(2021YFD1400200) （2021YFD1400200）
云南省中青年学术和技术带头人后备人才项目(202005AC160060),"兴滇英才支持计划"项目(YNWRQNBJ2020291 （202005AC160060）
K264202230209) （）
