| 钟广炎，钟 云，闫化学，姜 波，曾继吾.无病容器大苗在柑桔黄龙病综合防控中的应用价值[J].广东农业科学,2016,43(5):92-95 |
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无病容器大苗在柑桔黄龙病综合防控中的应用价值 |
| Application of very large nursery trees in control of citrus Huanglongbing |
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| DOI：10.16768/j.issn.1004-874X.2016.05.018 |
| 中文关键词: 柑桔黄龙病 大苗 病害防控 |
| 英文关键词: Citrus Huanglongbing very large nursery trees disease control |
| 基金项目:国家自然科学基金（C150103）；广东省科技计划项目（2014B070706018，2014B020202009，2013B090700007） |
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| 中文摘要: |
| 柑桔细菌性病害黄龙病是全球柑桔业的致命威胁。采用无病苗、砍除罹病树、统防统治柑桔木虱等综合防控措施虽然有效，但在幼年园中落实难。调查表明，导致此现象的主要原因是传统使用的露地小苗一般需要3 年才能长大投产，许多果农在此期间不得不外出打工以减轻经济压力。针对此种情况，提出了采用无病容器大苗建园，辅以促生栽培管理措施，使之在定植1 年后就投产的栽培技术路线，藉以减低幼树期黄龙病防控压力并减慢发病速度。4 年多的实践表明，容器大苗技术非常适合在黄龙病疫区使用，可大幅度提高疫区柑桔种植效益。简介了无病容器大苗技术及其原理，分析了该技术的优势，并对其推广应用前景进行展望。 |
| 英文摘要: |
| The citrus industry has being threatened by a devastating bacterial disease，citrus Huanglongbing（HLB）. Use of HLB-bacterium free nursery trees，elimination of infected trees and implement of coordinated control of the vector insect，the Asian Citrus Psyllid（ ACP），are effective but difficult to be efficiently applied in small newly planted orchards. This is because it usually takes at least three years for traditionally used small trees to grow to commercial productivity，forcing most of the small growers to take a second job to sustain their family during this period and leaving most of the orchards improperly attended for HLB. To alleviate the problem，the author proposed to use very large pathogen-free nursery trees grown in insect-proof screen houses in combination with growth promoting cultural practices to reduce the three-year long youth period to one year. It has been shown from our four-year trials that the strategy is very effective in reducing the HLB incidences and in increasing the returns of growing citrus in HLB-endemic areas. The principles，advantages and future perspective of the technique were briefly described and discussed. |
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