关键词: 德国小蠊, 硼酸, 凝胶毒饵

Abstract: Objective The aim of this study was to test the efficiency of boric acid as gel baits in the managements of German cockroach Blattella germanica population.Methods Several borate-sugar combinations as baits were evaluated in no-choice assays in laboratory,the oral toxicity was determined for German cockroach.Results The death numbers of German cockroach had linear correlation with the reaction time.The mortalities were 80.0% and 93.3% after 3 days when 2% and 4% boric acid were applied,respectively.It reached 96.0% for adult B.germanica after 4 days.The feasible glucose and sucrose baits were selected under 2% boric acid.When B.germanica feed 0.05 mol/L and 0.1 mol/L glucose or sucrose baits with boric acid separately,the mortality was above 80% after 4 days in no-choice assays.Conclusion Boric acid gel baits is an effective,inexpensive and low risk alternative in urban pest management.The mixture of boric acid and glucose or boric acid-sucrose solutions,can also be applied in the control,B.germanica.