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Flonicamid is a pyridinecarboxamide insecticide.1 It inhibits the brown planthopper (N. lugens) inward-rectifying potassium channel Kir1 (IC50 = 0.64 μM). Flonicamid (100 μg/ml) inhibits aphid (M. persicae) salivation and sap ingestion during feeding on Japanese radish leaves.2 It induces toxicity in the aphid species A. gossypii, R. padi, S. graminum, and L. erysimi (LC50s = 0.64, 0.74, 0.78, and 2.01 μg/ml, respectively) and rats (LD50 = ≥844 mg/kg).3,2 Formulations containing flonicamid have been used for the control of pest insects in agriculture.

1.Ren, M., Niu, J., Hu, B., et al.Block of Kir channels by flonicamid disrupts salivary and renal excretion of insect pestsInsect Biochem. Mol. Biol.9917-26(2018) 2.Morita, M., Ueda, T., Yoneda, T., et al.Flonicamid, a novel insecticide with a rapid inhibitory effect on aphid feedingPest. Manag. Sci.63(10)969-973(2007) 3.Morita, M., Yoneda, T., and Akiyoshi, N.Research and development of a novel insecticide, flonicamidJ. Pestic. Sci.39(3)179-180(2014)

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