摘要
天然橡胶产业是湛江农垦重要产业之一,近年因白粉病危害致使干胶产量减产约10%~12%。结合多年从事橡胶树白粉病防治工作的生产实际经验,通过设立监测站,分析橡胶树白粉病的危害、发生特点、物候病情以及未来天气动态,开展橡胶树白粉病减药防治试验。结果发现,采用醚菌酯防治橡胶树白粉病相对防效最好,显著高于使用喷硫磺粉和硫磺悬浮剂,药后3d相对防效达61.18%,药后7d相对防效达89.02%。因此,采用醚菌酯和喷硫磺粉相结合防控白粉病,可减少成本和农药用量,建议采取科学观测病情、充分准备物资、统防统治等防治措施。
Natural rubber is one of the important industries of Zhanjiang State Farms.In recent years,powdery mildew has caused about 10%-12%decrease in dry rubber output.In this paper,based on the years of practical production experience in the prevention and control of rubber powdery mildew,through the establishment of monitoring stations,the analysis of the harm of rubber powdery mildew,occurrence characteristics,phenology,future weather dynamics,the drug reduction and control experiments of rubber powdery mildew were carried out.The results showed that the relative control effect of pyrimethanil on powdery mildew of rubber trees was the best,which was significantly higher than that of sulfur powder and sulfur suspension.The relative control effects of pyrimethanil and sulfur powder on powdery mildew of rubber trees were 61.18%and 89.02%after 3 days and 7 days respectively.Therefore,the combination of pyrimethanil and sulfur powder for powdery mildew prevention and control could reduce the cost and pesticide dosage.And the scientific observation of the disease,adequate material preparation,unified prevention and control measures should be taken.
作者
揭育其
吴坎军
经福林
裴煜
谢冬杰
文尚华
JIE Yuqi;WU Kanjun;JING Fulin;PEI Yu;XIE Dongjie;WEN Shanghua(Huoju Farm Co.,Ltd.of Guangdong Agribusiness Group Corporation,Zhanjiang 524259,Guangdong;Science Research Institute of Zhanjiang State Farms of Guangdong,Zhanjiang 524000,Guangdong;Zhanjiang State Farms Bureau of Guangdong,Zhanjiang 524022,Guangdong)
出处
《中国热带农业》
2023年第6期27-33,共7页
China Tropical Agriculture
基金
农作物病虫鼠疫情监测与防治经费项目(天然橡胶病虫害监测与防控)。
关键词
橡胶树
白粉病
监测
减药防控技术
总结
rubber tree
powdery mildew
monitoring
drug reduction and prevention technology
conclusion
