– Insecticidal Agent 3, a multichitinase inhibitor and part of the insect growth regulators (IGRs) group, exhibits strong inhibition with Ki values of 0.8 μM, 11.9 μM, and 2.3 μM against Of ChtI, Of ChtII, and Of Chi-h enzymes, respectively. It demonstrates effective insecticidal activity against two lepidopteran pests by disrupting insect growth and molting processes [1].