A pesticidal composition comprises a synergistically effective amount of a pyrethroid-based or pyrethrin-based sodium channel modulator compound and a pesticide selected from N-(3-chloro-1-(pyridin-3-yl)-1H-pyrazol-4-yl)-N-ethyl-3-((3,3,3-trifluoropropyl)thio)propanamide(I), -(3-chloro-1-(pyridin-3-yl)-1H-pyrazol-4-yl)-N-ethyl-3-((3,3,3-trifluoropropyl)sulfinyl)propanamide (II), or any agriculturally acceptable salt thereof. A method of controlling pests comprises applying the pesticidal composition near a population of pests. A method of protecting a plant from infestation and attack by insects comprises contacting the plant with the synergistic pesticidal composition.一種殺蟲組成物,其包含一協同性有效量之擬除蟲菊酯為主或除蟲菊酯為主的鈉管道調節劑化合物以及一擇自於N-(3-氯基-1-(吡啶-3-基)-1H-吡唑-4-基)-N-乙基-3-((3,3,3-三氟丙基)硫代)丙醯胺(I)、N-(3-氯基-1-(吡啶-3-基)-1H-吡唑-4-基)-N-乙基-3-((3,3,3-三氟丙基)亞磺醯基)丙醯胺(II)或其任一農業上可接受之鹽之殺蟲劑。一種控制害蟲之方法,其包含在害蟲種群附近施用該殺蟲組成物。一種保護植物免於昆蟲感染以及攻擊之方法,其包含使該植物與該協同性殺蟲組成物接觸。
