关键词: 蟑螂胶饵, 德国小蠊, 毒效观察

Abstract: Objective To evaluate the effects of a paste bait "BAIMIESHI"against roach,by laboratory test and in the field application.Methods To test it according to the GB/T 17322.8-1998 and the GB/T 17322.11-1998.Results The results of laboratorial test showed that a 100% mortality was achieved during 72 h by both forced and unforced feeding tests.The values of LT₅₀ were 11.7 h and 13.7 h,respectively.A 100% mortality was also achieved during 102 h by the analogous field test,and the value of LT₅₀ was 20.4 h.In the field application,with a dosage of 0.4 g/m²,the density reduction rate(DRR) came to 63.6% and 89.0% at the 3^rd and 30^thday,respectively,while with a dosage of 0.8 g/m²,the DRR came to 82.3%,99.2% and 98.3% at the 3^rd,30^th and 60^th day,respectively.Conclusion The roach bait "BAIMIESHI" has been proved to be very effective on roach control with some of features:less amount used,long term residual effect and high safety,it can be used in the plases that children playing,top grade hotels and electrical equipment.