Insecticidal agent 26 (Compound A11), a spiro insecticidal agent, is a dual-functional inhibitor of pest Acetyl-CoA carboxylase (ACC) and Pyruvate carboxylase (PC). Insecticidal agent 26 has potent insecticidal activity against Sogatella furcifera with a LC50 of 11.0 µg/mL, with significant biosafety to bees. Insecticidal agent 26 can be used for management of white-backed planthoppers (WBPs)[1].