云南山地胶园白粉病防治农药减施初探  

Preliminary Study on Chemicals Dosage Reduction in Controlling Rubber Powdery Mildew in Yunnan Rubber Plantation

作　　者：蔡志英[1] 何海宁[1] 吴丽霞 苏海鹏[1] 戴利铭 熊延林[1] CAI Zhiying;HE Hailing;WU Lixia;SU Haipeng;DAI Liming;XIONG Yanling(Yunnan Institute of Tropical Crops,Jinghong 666100,China;Menghai Cash Crops Station,Menghai 666200,China)

机构地区：[1]云南省热带作物科学研究所,云南景洪666100 [2]勐海县经济作物工作站,云南勐海666200

出　　处：《热带农业科技》2020年第2期9-11,42,共4页Tropical Agricultural Science & Technology

基　　金：科技部重大专项(2018YFD0201100);云南省财政专项(RF2019-7);国家天然橡胶产业技术体系(CARS-34-ZD9)。

摘　　要：橡胶树白粉病是生产上严重影响产量的重要病害,目前硫磺粉和三唑酮是防治白粉病的常用药剂。硫磺粉用量大,在低温或阴天防病效果差;而长期使用三唑类烟雾剂防治,病原菌易产生抗药性。拟通过多种单剂复配多组分、广谱性新复方药剂并验证其田间防效,为橡胶树病害防治提供更多、可选择的药剂种类以克服上述弊端。结果表明,结合云南山地胶园白粉病短期动态预测技术及施用新复方热雾剂可显著地降低白粉病防治用药。新复方药剂热雾剂A和热雾剂B防效好,可以推广运用于生产。与硫磺粉相比较,新复方药剂施用量显著减少,能起到农药减施、增效作用,有利于我省植胶区生态环境安全。Rubber powdery mildew is an important disease which seriously affects the yield in production.Sulfur powder and triazolone are commonly used to control rubber powdery mildew at present.Sulfur powder has low effect in cool temperature or cloudy days with an immense cost.Long-term use of triazole smoke would arouse drug resistance from pathogens.Developing new compound fungicides and verified its field efficacy provides the powdery mildew control with more access to overcome the above disadvantages.The experimental results show that new compound A and B with excellent effects on control rubber powdery mildew can be widely promoted in production.Compared with sulfur powder,the new compounds showed a significant reduction in dosage,achieving higher effectiveness with fewer chemicals,which is beneficial to the ecological safety of rubber planting areas in Yunnan Province.

关 键 词：橡胶树 白粉病 化学防治 

分 类 号：S794.107[农业科学—林木遗传育种]