The effect of the recommended field as well as medium field rates of the readymade insecticides, Acetamiprid+ Lambda- cyhalothrin and Lambda-cyhalothrin to control Agrotis ipsilon larvae was evaluated. The insecticides showed much higher efficacy when used as poison baits. During February 2020, both insecticides field rates were applied in El-Giza and El- Behaira Governments, at recommended field rates, when appearance the symptoms of infection by cutworms in the potato crop which being 10 larvae, either cutting or damage plant per 25 plants. These insecticides belonging to, synthetic pyrethroids and neonicotinoids groups. The data were collected by counting the number of plants damaged or the eaten plant parts by A. ipsilon larvae just before and after three days from the application. The results cleared that there is no significant difference between the two tested Governments, whereas these was significantly difference between each other and control. Acetamiprid + Lambda-cyhalothrin showed in both Governments more effective than Lambda-cyhalothrin.