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2013-2014年,在棉花的苗期、蕾期和花铃期,对冀鲁豫3省18个监测点的烟粉虱发生为害情况进行了系统调查。2年数据结果表明:冀鲁豫Bt棉田烟粉虱的发生数量均为花铃期>蕾期>苗期;按地区烟粉虱的发生数量进行排序:河南>山东>河北,2013年和2014年河南省烟粉虱发生总量分别为8822.50和13619.72头·百株-1,为害株率分别为99.17%和99.72%。
In 2013-2014, we systematically investigated the occurrence of Bemisia tabaci (Bemisia tabaci) in 18 monitoring sites in three provinces of Hebei and Shandong provinces during the seedling stage, bud stage and flowering stage. The results of 2 years showed that the frequency of whitefly biotype in Bt cotton field in Hebei, Shandong and Henan Provinces were in the order of flowering stage, bud stage and seedling stage, and the order of occurrence of whiteflies by area was Henan: Shandong Province, Hebei Province in 2013 and 2014 The total annual occurrences of whiteflies in Henan Province were 8822.50 and 13619.72 heads and 100 plants per plant respectively, with the rates of damaged plants being 99.17% and 99.72%, respectively.