Durairaj C, Venugopal MS. Combined effect of margosa oil and diflubenzuron on tobacco caterpillar (Spodoptera litura) and gram podborer (Helicoverpa armigera). Indian J Agri Sci. 2012;65(4). Accessed October 26, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/18246