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文山州自2007年稻飞虱特大发生以来,近年连年持续重发生。2010年由白背飞虱传毒的南方水稻黑条矮缩病暴发,普查和系统调查结果显示,文山州南方水稻黑条矮缩病发生面积1.51万hm2,白背飞虱带毒率29.17%~83.3%。2011、2012年分别开展了防虫网隔离育秧和不同栽插期控病试验。结果表明,防虫网隔离育秧水稻黑条矮缩病发病率明显低于对照8.74个百分点,实测产量处理比对照高31.01~33.40 kg/667m2;并探讨了对该病害的早期监测与药剂防控等综合治理技术。
Wenshan Prefecture has grown continuously in recent years since the outbreak of rice planthoppers in 2007. In 2010, the outbreak of black-streaked dwarf dwarfing rice in southern China was reported by white-backed planthopper (Sogatella furcifera). The investigation and systematic investigation showed that the area of rice black-streaked dwarf disease in southern Wenshan Prefecture was 15,100 hm2 and the rate of white-backed planthopper was 29.17% ~ 83.3%. In 2011 and 2012, we carried out insect-proof net isolation and seedling control and disease control tests at different planting stages. The results showed that the incidence of black-streaked dwarf disease was significantly lower than that of the control in insect-resistant net seedling cultivation, and the actual yield was 31.01-33.40 kg / 667m 2 higher than that of the control; and the early monitoring of the disease and the prevention and control of pesticide were discussed Comprehensive treatment technology.