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用点滴法对合肥市家蝇的抗药性测定结果表明，９５年家蝇对ＤＤＶＰＬＤ５０为３．９２６６μｇ／♀抗性增长是８８年的２１倍，对二氯苯醚菊酯ＬＤ５０为０．１８７４ｕｇ／♀，是８８年的６．２倍，对胺菊酯ＬＤ５０为２．７４１８ｕｇ／♀。
The antibiotic resistance test of housefly in Hefei by dot-drip method showed that the resistance increase of DDVPLD50 to housefly in 1995 was 21 times of that in 88 years, and that of dipyridaphyrin was 0.1874ug / ♀, 6.2 times that of 88 years and 2.7418ug / ♀ for tetramethrin LD50.