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当前位置: 首页 > 文章 > 玉米螟优势捕食性天敌控害效益评价 新疆农业科学 2018 (4) 712-718
Position: Home > Articles > Control Benefit Evaluation of Predatory Natural Enemies of Pyrausta nubilalis Xinjiang Agricultural Sciences 2018 (4) 712-718

玉米螟优势捕食性天敌控害效益评价

作  者：
尹鹏;丁新华;付开赟;吐尔逊·阿合买提;何江;郭文超
单  位：
新疆农业科学院植物保护研究所/农业部西北荒漠绿洲作物有害生物综合治理重点实验室;石河子大学农学院;新疆农业科学院微生物应用研究所
关键词：
捕食性天敌;中华草蛉;玉米螟;捕食功能反应;控害效益
摘  要：
【目的】研究3种玉米螟优势捕食性天敌对玉米螟卵和1、2、3龄的捕食功能反应,为玉米田有害生物可持续防治提供科学依据。【方法】将饥饿处理24 h后的方斑瓢虫成虫、黄褐新园蛛、中华草蛉3龄幼虫分别与不同密度玉米螟卵和1、2、3龄幼虫进行组合,24 h后测定捕食量。【结果】3种优势天敌对各龄期玉米螟幼虫的功能反应均属于Holling-Ⅱ型,即天敌的捕食能力和和猎物的密度为负加速曲线。中华草蛉3龄幼虫对玉米螟的控制能力最强,其对1龄、2龄、3龄玉米螟幼虫24 h最大捕食量分别为353.32、53.98和17.42头,并对卵块有捕食作用,24 h最大捕食量为251.03粒。【结论】中华草蛉3龄幼虫对玉米螟具有良好的控害潜能,应保护和利用玉米田田间优势捕食性天敌。
译  名：
Control Benefit Evaluation of Predatory Natural Enemies of Pyrausta nubilalis
作  者：
YIN Peng;DING Xin-hua;FU Kai-yun;Tursun Ahmat;HE Jiang;GUO Wen-chao;College of Agronomy,Shihezhi University;Key Laboratory of Intergraded Management of Harmful Crop Vermin of China North-western Oasis,Ministry of Agriculture,P.R.China/Research Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences;Institute of Microorganism Application in Xinjiang Academy of Agricultural Sciences;
关键词：
predator;;Chrysopa sinica;;Pyrausta nubilalis;;predatory functional response;;pest control benefits
摘  要：
【Objective】The predatory natural enemies of 3 kinds of corn borer predatory response to the eggs of corn borer and 1,2,3 years of age were studied to provide scientific basis for the sustainable prevention and control of harmful organisms in maize fields.【Method】The 3 instar larvae of pinychus cineriaris,the new arboretum,and the 3 larvae of Chrysopa sinica were combined with the eggs of the Pyrausta nubilalis and the 1,2 and 3 instar larvae of the Pyrausta nubilalis,respectively,after the treatment of starvation,the amount of food was measured after 24 h.【Result】The functional responses of the 3 dominant natural enemies to the larvae of the corn borer of each age were Holling-Ⅱ,namely,the predatory capacity of the natural enemy and the density of the prey were negative acceleration curves. The 3 instar larvae of Chrysopa sinica had the strongest control ability to the corn borer. The maximum 24 h predation of the larvae of 1,2 and 3 instar was353. 32,53. 98 and 17. 42 respectively. The maximum predation rate for 24 hours was 251. 03 eggs.【Conclusion】The 3 instar larvae of Chrysopa sinica have good control potential for the Pyrausta nubilalis. Therefore,it is of great significance to protect and utilize the predatory natural enemies in the corn fields,which is of great significance to control the occurrence and damage of Pyrausta nubilalis.

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