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在水稻秧苗期测定入迁白背飞虱带毒率,预测南方水稻黑条矮缩病发生趋势,采用温室培育水稻秧苗单株接入白背飞虱方法于2010年测定了5月6日、5月18日、5月25日、6月15日、6月23日5次入迁萍乡的白背飞虱带毒率,分别为0、2.17%、6.52%、39.96%、30.43%;2011年测定了5月7日、5月18日、6月10日、6月17日、6月21日5次入迁白背飞虱带毒率,分别为0、0、0、0、2.2%;2012年测定了5月4日、5月8日、5月31日、6月9日、6月13日5次入迁白背飞虱带毒率,分别为0、0、4.4%、2.2%、6.7%。3年的苗期测定初步认为,入迁白背飞虱SRBSDV带毒率达到4%～6%时,当年南方水稻黑条矮缩病为轻发生,而其带毒率达到30%以上,就可能有大暴发的趋势。
In the rice seedling stage determination of migration rate of white-backed planthopper poisoning, prediction of southern rice black-streaked dwarf disease trends, the use of greenhouse cultivation of rice seedlings access to whitebacked planthopper method was measured in 2010 on May 6, The rates of white-backed planthopper infestation in Pingxiang on May 18, May 25, June 15 and June 23 were 0,2.17%, 6.52%, 39.96% and 30.43% respectively; The annual rate of entomology of white-backed planthopper was determined on May 7, May 18, June 10, June 17 and June 21, respectively, and were 0,0,0,0,2.2 %; In 2012, the lethality of white-backed planthopper (Sogatella furcifera) on May 4, May 8, May 31, June 9, June 13 was determined as 0, 0 and 0.4% , 2.2%, 6.7%. Three years of preliminary determination of seedling stage, the white-backed planthopper SRBSDV poisoning rate reached 4% to 6%, when the southern black rice short-term dwarf disease was mild, and its incidence of more than 30% There may be a big outbreak trend.