Ahmad Mushtaq, Mehmood Rashid
Central Cotton Research Institute, Multan, Pakistan.
J Econ Entomol. 2015 Jun;108(3):1279-88. doi: 10.1093/jee/tov085. Epub 2015 Apr 23.
The armyworm Spodoptera litura (F.) is a very serious pest of many crops, vegetables, and ornamentals. Due to persistent application of insecticides, this pest has developed resistance to conventional as well as new chemistries. The present studies investigated the level of resistance to new chemistry insecticides, having novel modes of action, in the Pakistani field populations of S. litura during 1997-2010 by using a leaf-dip bioassay. Generally, a low to moderate resistance was recorded to indoxacarb, abamectin, fipronil, and methoxyfenozide; along with a very low resistance to spinosad. Resistance to emamectin benzoate, chlorfenapyr, and lufenuron was none or very low, in spite of their intensive use against S. litura. The insecticides, showing no or very low resistance, can be used in rotation in conjunction with other integrated pest management tactics to manage insecticide resistance in S. litura.
斜纹夜蛾是许多农作物、蔬菜和观赏植物的一种非常严重的害虫。由于持续使用杀虫剂，这种害虫已对传统以及新型化学药剂产生了抗性。本研究通过浸叶生物测定法，调查了1997年至2010年期间巴基斯坦斜纹夜蛾田间种群对具有新型作用模式的新型化学杀虫剂的抗性水平。一般来说，对茚虫威、阿维菌素、氟虫腈和甲氧虫酰肼的抗性为低到中等；对多杀菌素的抗性非常低。尽管高效氯氟氰菊酯、溴虫腈和虱螨脲被大量用于防治斜纹夜蛾，但对它们的抗性不存在或非常低。对这些显示无抗性或抗性非常低的杀虫剂，可以与其他综合害虫管理策略轮换使用，以管理斜纹夜蛾的抗药性。
