A field study was conducted during kharif 2024 at Biswanath College of Agriculture, Assam, to evaluate the effects of sowing dates on insect pest dynamics in maize to improve pest management. Eight insect pests were recorded, with Spodoptera frugiperda as the dominant species. Peak populations of S. frugiperda (3.25 larvae per plant), Rhopalosiphum maidis (72.75 aphids per leaf) and Monolepta signata (1.50 beetles per plant) occurred during the 19th, 21st and 19th standard meteorological week (S