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在实验室条件下,溴氰菊酯49.5mmol/L(2.5％)悬浮剂使用一定剂量,在玻璃板、石灰乳胶板油漆板、石灰板、水泥板对蝇、蚊、蟑螂都有良好的速杀作用,将施药后各板面于50℃恒温贮存4周(相当自然存放二年)后,玻璃板、石灰乳胶板对蚊、蝇的击倒中时分别在5.71～13.24min、6.71～15.66min之间波动,24h死亡率均为100％,油漆板贮存到第3周以后对蚊的击倒中时大于30min,但对蝇的击倒中时始终在12.73～17.26min之间,保持较好的杀灭效果及滞效,石灰板、水泥板对蚊、蝇的持效作用不如前三种板;在对蟑螂的持效试验中,除玻璃板对蟑螂的击倒中时波动在12.30～16.46min、72h死亡率达100％之间,其余各板面分别在不同时间内药效下降,其中的石灰板、水泥板持效作用最短。现场使用证明,溴氰菊酯49.5mmol/L(2.5％)悬浮剂在一定的使用剂量下,对蝇、蟑螂有良好的防治效果,施药后第一天蝇、蟑螂密度下降率分别为99.7％及99.8％以上,30d后密度下降率仍达93.95％和100％,防治蟑螂在60d后除大西市场一楼发现若虫(8只/人工小时)外,其余各试点的密度下降率仍维持在100％。该制剂还有刺激性小,不留明显药迹等优点。
Under laboratory conditions, deltamethrin 49.5 mmol / L (2.5%) suspending agent is used in a certain dosage and has good speed on glass plate, lime latex paint board, lime board and cement board for fly, mosquito and cockroach Kill, after the application of the plate surface at 50 ℃ for 4 weeks (fairly natural storage for two years), the glass plate, lime latex sheet on mosquitoes, flies were knocked down in the 5.71 ~ 13.24min, 6.71 ~ 15.66min between the volatility, 24h mortality were 100%, the paint plate after the first 3 weeks of the mosquito knockdown in more than 30min, but the flies in the knockdown was always between 12.73 ~ 17.26min, to maintain Better killing effect and lag effect, the effect of lime board and cement board on mosquitoes and flies is not as good as that of the first three kinds of boards; in the cockroach holding test, the fluctuation of cockroaches 12.30 ~ 16.46min, 72h mortality rate of 100%, the rest of the plate were reduced at different times, the efficacy of which lime board, the shortest effect of cement board. Field use proved that 49.5mmol / L deltamethrin (2.5%) suspending agent had a good control effect on flies and cockroaches at a certain dosage. The declining rates of flies and cockroaches on the first day after application were 99.7 % And 99.8%, respectively. After 30 days, the density reduction rate still reached 93.95% and 100% respectively. After the control of cockroaches for 60 days, except for the discovery of nymphs on the first floor of Daxi market (8 / artificial hour) 100%. The preparation also has little irritation, leaving no obvious advantages such as medicine.