GURUSUBRAMANIAN, G., SARMAH, M., BASIT, A., BHATTACHARYYA, B. and Rahman, A. 2007. Ovicidal, acaricidal and growth inhibitory activity of Xanthium strumarium L., Acorus calamus L., and Pongamia pinnata L. (Pierre) against a major pest of tea, Oligonychus coffeae Nietner (Tetranychidae : Acarina). International Journal of Tea Science. 6, 03 (Oct. 2007), 01-14. DOI:https://doi.org/10.20425/ijts.v6i3.4691.