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机构地区:[1]内蒙古自治区草原工作站,内蒙古呼和浩特010020 [2]全国畜牧总站,北京100125
出 处:《草业科学》2017年第5期1113-1120,共8页Pratacultural Science
基 金:基金项目:农作物重大病虫害防控关键共性技术(2012BAD19B01)
摘 要:草原是内蒙古的生态主体,对维护全国的生态环境起着十分重要的作用。多年来草原蝗害在内蒙古连年发生,对草地植被造成严重破坏。本研究对2006-2015年内蒙古草原蝗害、绿色防控技术及应用现状进行了分析与总结,并提出防控对策。结果表明,内蒙古草原蝗虫整体为害2010-2015年已连续6年呈下降态势,目前以点片状中、低密度分散发生为主;蝗虫微孢子虫(Nosema locustae)、蝗绿僵菌(Metarhizium acridum)、苏云金杆菌(Bacillus thuringiensis)、印楝素(azadirachtin)、苦参碱(matrine)、烟碱·苦参碱(nicotine·matrine)、牧鸡牧鸭、自然天敌防控及生态治理效果明显,绿色防控技术得到优化,防控技术体系基本形成,10年间累积应用面积733.3万hm^2,生物防治面积明显增大,生物防治比例显著提高,减灾收益9.9亿元,生态、经济和社会效益显著;建议草原蝗虫绿色防控应进一步增加资金投入、完善预警体系、加大科研力度、强化生物防治,切实解决生产实际中的难点和问题,以实现草原蝗虫的绿色可持续防控。Grassland forms the main body of the land ecosystem and plays a pivotal role in the maintenance of the national ecological environment. Locust plagues commonly occur in Inner Mongolia grasslands and have caused serious damages to the grassland vegetation. In order to reduce losses, we analysed and summarised lo- cust plagues and suggested strategies for the application of green control technologies on grasslands from 2006 to 2015. Accordingly, the locust plagues have decreased for six years from 2010 to 2015 in Inner Mongolia. Presently, locust plagues occur only as spots or slices of mid-density or low-density. The control effects by u- sing Nosema locustae, Metarhiziurn acridum, Bacillus thuringiensis, azadirachtin, matrine, nicotine ~ ma- trine, herding chicken and duck, release of natural enemies of locusts, and ecological management have been excellent. The green control technologies have been refined, and the basic control strategies have been decided, Over the past few decades, the cumulative application areas using the green control technologies have increased to 7.333 million hectares. The application green control technologies has reduced the pasture direct economic benefit loss benefits. In must be inc additional s of 99 order 0 million CNY from to resolve problems 2006 to 2015 and result with production and ac reased, early warming system must be perfected, cientific research must be reinforced. ed in remarkable ecological, economic, and social hieve green and sustainable control, capital input biological control needs to be strengthened, and additional scientific research must be reinforced.
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