BASKARAN, R. K., VENUGOPAL, M. S., & MAHADEVAN, N. R. (2013). Effect of certain botanicals on biological activity of nuclear polyhedrosis virus of tobacco caterpillar (Spodoptera litura). The Indian Journal of Agricultural Sciences, 69(3). https://epubs.icar.org.in/index.php/IJAgS/article/view/26563