R. S. Bhandari, S. Pande, M. C. Joshi, S. M. H. Zaidi, J. M. S. Rawat, and V. Kumar, “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, vol. 132, no. 8, pp. 1041–1046, Aug. 2006.