【摘要】 为了评估三氟苯嘧啶与新烟碱类杀虫剂混用对家蝇和褐飞虱的毒杀效果与混用效应，开展了室内毒力测定试验，并根据筛选出的最佳混配组合开展田间药效试验。试验结果显示，三氟苯嘧啶与呋虫胺、噻虫嗪、烯啶虫胺按照质量比1∶5.57、1∶1.83、1∶11.6混配，对家蝇的共毒系数分别为250、144、174；按照质量比1∶3.99、1∶3.33、1∶7.83混配，对褐飞虱的共毒系数分别为219、178、138。田间试验结果显示，施用10%三氟苯嘧啶SC+20%呋虫胺SC(7.65 g/hm~2+39.00 g/hm~2)、10%三氟苯嘧啶SC+30%噻虫嗪SC(10.35 g/hm~2+12.15 g/hm~2)、10%三氟苯嘧啶SC+10%烯啶虫胺SL(6.75 g/hm~2+47.25 g/hm~2)，药后第7天，对褐飞虱的防治效果为76.22%～78.09%。表明混配组合在减少药剂用量后仍能保持原有的防治效果。三氟苯嘧啶与呋虫胺、烯啶虫胺、噻虫嗪混用对家蝇和褐飞虱具有明显的协同增效作用。更多还原

【Abstract】 To evaluate the insecticidal and synergistic effects of triflumezopyrim and neonicotinoid insecticides on Nilaparvata lugens and Musca domestica, the laboratory bioassay tests were carried out to evaluate the mixed effects of different insecticides, and field efficacy trials were carried out based on the best mixed combination. The results showed that triflumezopyrim combined with dinotefuran, thiamethoxam and nitenpyram had synergistic effects. The co-toxicity coefficients were 250, 144 and 174 against Musca domestica at the mass ratios of 1 ∶5.57, 1 ∶1.83 and 1 ∶11.6. The co-toxicity coefficients were 219, 138 and 178 against Nilaparvata lugens at the ratios of 1 ∶3.99, 1 ∶3.33, 1 ∶7.83,respectively. The control effects of triflumezopyrim 10% SC + dinotefuran 20% SC(7.65 g/hm~2+ 39.00 g/hm~2), triflumezopyrim 10% SC + thiamethoxam 30% SC(10.35 g/hm~2+ 12.15 g/hm~2), triflumezopyrim 10% SC + nitenpyram 10% SL(6.75g/hm~2+ 47.25 g/hm~2) on Nilaparvata lugens were 76.22%-78.09% at the 7 th day after field application. The mixtures of the tested insecticides could maintain the control effects even after reducing the dosage. Triflumezopyrim mixed with dinotefuran, nitenpyram and thiamethoxam exhibited synergistic effects on Nilaparvata lugens and Musca domestica.更多还原