永城县位于河南省最东部,常年种植小麦140万亩左右。1991年试用药效期长的60％林丹粉,每亩1—1.5公斤加干细土20—30公斤,于犁地前撒施,使药粉均匀分布在5—15厘米土中,当年全县示范30万亩。防治区于羽化盛期的4月23日—5月7日笼罩法调查,吸浆虫羽化率减退96.4％。兼治地 Yongcheng County is located in the eastern part of Henan Province, perennial planting of about 1400000 acres of wheat. In 1991 the trial of long-term efficacy of 60% lindane powder, 1-1.5 kg per acre plus dry fine soil 20-30 kg, before spreading in the plow, so that the powder evenly distributed in 5-15 cm soil, then the county Demonstration 30000 mus. Control area in the plume of the peak of April 23-May 7 investigation of cover law, inhalation of pulp feathering rate decreased 96.4%. Concurrently