1. Ahmad, M., Arif, M. I., & Zahoor, A. (2001). Resistance to carbamate insecticides in Helicoverpa armigera (Lepidoptera: Noctudiae) in Pakistan. Crop Protection, 20, 427–432.
2. Ahmad, M., Arif, M. I., & Zahoor, A. (2003). Susceptibility of Helicoverpa armigera (Lepidoptera: Noctuidae) to new chemistries in Pakistan. Crop Protection, 22, 539–544.
3. Bravo, A., Gomez, I., Conde, J., Munoz-Garay, C., Sanchez, J., Miranda, R., et al. (2004). Oligomerization triggers binding of Bacillus thuringiensis Cry1Ab pore-forming toxin to aminopeptidase N receptor leading to Cry1Ac δ-endotoxin of Bacillus thuringiensis in the cotton bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae). Journal of Economic Entomology, 96, 1290–1299.
4. Cao, G., Lu, Q., Zhang, L., Guo, F., Liang, G., Wu, K., et al. (2010). Toxicity of chlorantraniliprole to Cry1Ac-susceptible and resistant strains of Helicoverpa armigera. Pesticide Biochemistry and Physiology, 98, 99–103.
5. Carner, G. R., & Yearian, W. C. (1989). Development and use of microbial agents for control of Heliothis spp. in the USA. In E. G. King, & R. D. Jackson (Eds.), Proceedings of the workshop on biological control of Heliothis: increasing the effectiveness of natural enemies (1985, New Delhi, India) (pp. 467–481). Far Eastern Regional Research Office, US Department of Agriculture.