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百部碱对敏感品系德国小蠊2、4、6、龄期若虫和成虫的LD_(50)分别为:0.0045、1.08、10.83、46.9ug/虫,对抗溴氰菊酯和氯菊酯的德国小蠊成虫的ld_(50)为48.22ug/虫。0.4％百部碱水溶液用量为1.5ml/m~3,在18℃、25℃、28℃时,对敏感品系德国小蠊2期若虫24h杀灭率分别为33.3％、41％、49％。x~2检验:p>0.05。0.4％百部碱水溶液用量为2ml/m~3时,对抗性品系德国小蠊2—7龄期若虫72h的杀灭率为83.3％,对成虫72h杀灭率为11.1％;用量为3ml/m~3时,对抗性若虫48h杀虫率为100％,对成虫72h杀灭率为61.1％;用量为4ml/m~3时,对抗性若虫48h杀灭率为100％,对抗性成虫72h杀灭率为82.1％。
The LD 50 of the sensitive strains Blattella germanica at 2, 4, 6, nymphs and adults were 0.0045, 1.08, 10.83 and 46.9 ug / insects respectively, and Germany against deltamethrin and permethrin The adult ld_ (50) was 48.22ug / worm. The amount of 0.4% aqueous solution of pentaerythritol was 1.5ml / m ~ 3. The killing rates of susceptible strain Blattella nymphactis during second phase were 33.3%, 41% and 49% respectively at 18 ℃, 25 ℃ and 28 ℃. x ~ 2 test: p> 0.05.0.4% When the dosage of pekinensis aqueous solution was 2ml / m ~ 3, the killing rate of antagonistic strains 2-7 instar nymphs of German cockroach at 72h was 83.3% The rate was 11.1%. When the dosage was 3ml / m ~ 3, the insecticidal rate of antagonistic nymph 48h was 100%, the killing rate of adult 72h was 61.1%; when the dosage was 4ml / m ~ 3, The rate of killing was 100%, and the killing rate of antagonistic adults was 82.1% after 72 h.