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Item Effect of (+)-usnic acid on the shot-hole borer (Xyleborus fornicatus Eichh.) of tea(National Science Foundation:Colombo, 2008-12) Sahib, K.; Kularatne, N.S.; Kumar, S.; Karunaratne, V.Item Ambewelamides A and B, antineoplastic epidithiapiperazinediones isolated from the lichen Usnea sp.(1998) Williams, D.E.; Bombuwala, K.; Lobkovsky, E.; De Silva, E.D.; Karunaratne, V.; Allen, T.M.; Clardy, J.; Andersen, R.J.Item Lichen substances: biochemistry, ecological role and economic uses(University of Perdeniya. Peradeniya, 1999) Karunaratne, V.Item Chemistry of Heterodermia microphylla, a lichen new to Sri Lanka(National Science Foundation:Colombo, 2008-9) Bombuwela, K.; Kathiragamanathar, S.; Thadhani, V.; Jayalal, R.G.U.; Adikaram, N.K.B.; Wijesundara, D.S.A.; Andersen, R.; Wolseley, P.; Karunaratne, V.Item Lichens : a chemically important biota(National Science Foundation:Colombo, 2005) Karunaratne, V.; Bombuwela, K.; Kathirgamanathar, S.; Thadhani, V.M.Item Antibacterial activity of some medicinal plants of Sri Lanka(1998) Hewage, C.M.; Bandara, B.M.R.; Karunaratne, V.; Wannigama, G.P.; Pinto, M.R.M.; Wijesundara, D.S.A.Item Complete 2D NMR assignment and antifungal activity of ishwarane isolated from Hortonia, a genus endemic to Sri Lanka(National Science Foundation:Colombo, 2008-3) Ratnayake, R.; Jayasinghe, S.; Ratnayake Bandara, B.M.; Andersen, R.J.; Karunaratne, V.Item Antimicrobial and toxicological activities of some depsides and depsidones(National Science Foundation:Colombo, 2012-03) Thadhani, V.M.; Choudhary, M.I.; Khan, S.; Karunaratne, V.Item Lichen substances:biochemistry, ecological role and economic uses(University of Perdeniya:Peradeniya, 1999) Karunaratne, V.