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河北省在七十年代,小麦丛矮病连年发生,1977年秋发病面积为577万亩,对小麦生产威胁很大。1977年开始采用综合治理,生态调控的措施,到1982年全省即控制了小麦丛矮病的危害,具体表现在:(一)发病县数由1977年的117个减少到1982年的18个,减少86.4%。(二)发病面积由577万亩,减少为47.96万亩,下降91.6%。(三)传毒昆虫带毒率由1977年的34—36%下降为1.47%,下降了95.6%。(四)麦田发病株率由1977年的20—50(严重的为80%,有15%的病田绝收),到1982年呈零星发病,已全面控制危害,1982—1985年稳定控制该病。
In the seventies of Hebei Province, wheat bushy dwarf disease occurred year after year. The autumn disease area in 1977 was 577 mu, threatening the wheat production. In 1977, the measures of integrated management and ecological control were adopted. By 1982, the province controlled the harm of wheat bushy dwarf disease as follows: (1) The number of affected counties decreased from 117 in 1977 to 18 in 1982 , A decrease of 86.4%. (B) the incidence of the area from 577 mu, reduced to 479,600 mu, down 91.6%. (C) poisoning rate of poisoning insects decreased from 34-36% in 1977 to 1.47%, down 95.6%. (4) The incidence of disease in the wheat fields has been reduced from 20-50 in 1977 (80% of which is serious and 15% of the diseases are unmanaged) to a sporadic disease in 1982 with complete control of the damage. The disease was stably controlled from 1982 to 1985 .