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自１９９１年起，三二四一七部队连续３年开展灭蟑螂达标活动。在查清蟑螂虫情的基础上，坚持以环境治理为主，采用药物喷洒和药笔划线相结合的方法，蟑螂成、若虫侵害率由灭前的４７．５％降至１．５％，平均密度（只／间）由灭前的２１．３降至３．２；卵鞘侵害率由灭前的５．５％降为０．４％，平均密度（只／间）由灭前的２．１降至１．４．灭蟑达标后巩固至今，各项指标均维持在＂双五、双二＂标准以内
Since 1991, the PLA unit has carried out standard-of-cockroach-killing activities for three consecutive years. Based on the investigation of the insects and cockroaches, adherence to environmental management, the use of drug spraying and drug strokes combined method cockroaches into, nymphs infested rate from pre-extinction of 47.5% to 1.5% The average density (only / interval) decreased from 21.3 before the extinction to 3.2. The damage rate of the egg sheath decreased from 5.5% before extinction to 0.4%, and the average density (only / 2.1 down to 1.4. After the cockroach reached the standard consolidation so far, the indicators are maintained at “double five, double two” standard