目的筛选对蜚蠊具高效引诱性的化合物,探讨其与喷洒型杀虫剂联合使用提高蜚蠊防治效果的可行性。方法应用小容器诱捕法测试柠檬醛、松油烯-4-醇、HT-1酚对德国小蠊的引诱性；应用点滴法测试柠檬醛、松油烯-4-醇、HT-1酚对醚菊酯灭杀德国小蠊的增效性；在模拟实验室测试引诱剂与醚菊酯联合使用对德国小蠊的诱杀效果。Duncan检验用于分析不同化合物对德国小蠊引诱性差异。结果柠檬醛、松油烯-4-醇、HT-1酚对德国小蠊具明显的引诱性,1.0%浓度时相对引诱率分别为16.73%、12.33%和31.01%,5.0%浓度时均表现为负趋向性；2.5%柠檬醛、松油烯-4-醇、HT-1酚对醚菊酯灭杀德国小蠊的增效率分别为73.81%、47.12%和40.90%；在模拟试验条件下,柠檬醛、松油烯-4-醇、HT-1酚与醚菊酯联合使用,可提高试虫与药膜的接触机会,相对引诱率分别为22.22%、7.26%和30.29%,同时还可提高杀虫效果,增效率分别为72.51%、67.01%和39.93%。结论植物源性引诱剂通过诱导害虫主动接触杀虫剂药膜,并发挥其增效剂的作用,在减少化学杀虫剂使用的同时还可提高杀虫效果,为害虫防治提供了一种新的技术途径。

Objective To screen for the effective attractants for cockroaches, and to investigate the feasibility of attractants combined with spraying insecticides in improving the effectiveness of cockroach prevention and control.Methods The small container trapping method was used to determine the attractability of citral, terpinen-4-ol, and HT-1 phenol to Blattella germanica; the topical application method was used to determine the synergistic activity of citral, terpinen-4-ol, and HT-1 phenol on ethofenprox against B. germanica; a simulation laboratory was used to investigate the effect of the attractants combined with ethofenprox in attracting and killing B. germanica. The Duncan test is used to analyze the differences in the attractability of different compounds to German cockroaches.Results Citral, terpinen-4-ol, and HT-1 phenol had marked attractability to B. germanica, with a relative attraction rate increased by 16.73%, 12.33%, and 31.01%, respectively, at a concentration of 1.0%, while repellency was observed at a concentration of 5.0%. The synergistic rate of 2.5% citral, terpinen-4-ol, and HT-1 phenol to ethofenprox against B. germanica were 73.81%, 47.12%, and 40.90%, respectively. In the simulation laboratory, citral, terpinen-4-ol, and HT-1 phenol combined with ethofenprox increased the contact between the tested cockroaches and insecticide-impregnated paper, with a relative attraction rate increased by 22.22%, 7.26%, and 30.29%, respectively, and such combination also improved killing effect, with a synergistic rate of 72.51%, 67.01%, and 39.93%, respectively.Conclusion Botanical attractants act as a synergist by inducing pests to contact with insecticides and can reduce the use of chemical insecticides while improving killing effect, which provides a new technical approach for the prevention and control of pests.