Bhandari, R. S., Pande, S., Joshi, M. C., Zaidi, S. M. H., Rawat, J. M. S., & Kumar, V. (2006). Control of Cone Worm, <I>Dioryctria abietella</I> Denis and Schiffermueller (Lepidoptera : Pyralidae) in Seed Production Areas of Spruce, <I>Picea smithiana</I> Boiss by Systemic Insecticides. Indian Forester, 132(8), 1041–1046. https://doi.org/10.36808/if/2006/v132i8/4245