Ekram, A.; Sarker, I.; Shaekh, M.; Khatun, R.; Hoque, K. Effect of Ethyl Methane Sulfonate (Ems) on Incubation Period, Pupal Period and Reproductive Potential of Ladybird Beetle, Epilachna Vigintioctopunctata Fab. J Life Earth Sci 2014, 8, 119-122.