Research Publications

Agronomy and Crop Improvement
  1. Malkanthi, M.D., Pabasara P.K.D., Weerasuriya, S.N. Mihiri Tharanga K.H.G. (2023), Effect of inorganic fertilizers on growth of cinnamon (Cinnamomum zeylanicum Blume) seedlings raised in sub soil substrates. Annual Symposium of Export Agricultural Crops (Mapa, R. B. eds). Volume 6, pp 117-121, 22-23 June. Peradeniya, Sri Lanka
  2. Sewwandi K.P.S., Weerasuriya, S.N., Galahitigama, G.A.H (2022). Effect of above ground morphology of cinnamon plant on yield and processing: traits desirable for variety improvement. Student Research Proceedings, Faculty of Agriculture, Sabaragamuwa University of Sri Lanka. 19th March 2023.
  3. Weerasuriya S.N., Pathirana R. (2020) Germplasm Resources, Breeding Technologies and the Release of Cinnamon Cultivars ‘Sri Wijaya’ and ‘Sri Gemunu’ in Sri Lanka. In: Senaratne R., Pathirana R. (eds) Cinnamon. Springer, Cham. https://doi.org/10.1007/978-3-030-54426-3_6
  4. Samaraweera D.N., Weerasuriya S.N., Karunaratne A.S., Subasinghe S., Senaratne R. (2020) Ecology, Agronomy and Management of Cinnamon (Cinnamomum zeylanicum Blume). In: Senaratne R., Pathirana R. (eds) Cinnamon. Springer, Cham. (https://doi.org/10.1007/978-3-030-54426-3_7)
  5. Tharika, A.D.N., Weerasuriya, S.N. Mewan, K,M, (2020). Characterization of selected Cinnamomum zeylanicum Blume. Hybrid progeny with a farmer field selection and released cultivars Sri Gemunu and Sri Wijaya. Proceedings of 19th Agriculture Research Symposium. Wayamba University, Makandura, Gonawila, Sri Lanka. 22nd January 2021. 295 -299.
  6. Alahakoon, P R., Weerasuriya, S. N., and De Silva, C. S. (2019). Effect of water requirement on growth, yield and peelability of true Cinnamon (Cinnamomum zeylanicum Blume.). Journal of Engineering and Technology of The Open University of Sri Lanka (JETOUSL). 7(1), pp. 75 88. ISSN 2279-2627
  7. Ariyarathne, H.B.M.A., Weerasuriya, S.N. and Senarath, W.T.P.S.K (2018). Comparison of morphological and chemical characteristics of two selected accessions and six wild species of genus Cinnamomum Schaeff. Sri Lankan Journal of Biology. 3(1), pp.1123. DOI: http://doi.org/10.4038/sljb.v3i1.14
  8. Weerasuriya, S. N. Munasinghe, R.S. and Wijesinghe, K.G.G. (2017). Effect of seed moisture content and storage condition on viability of true cinnamon (Cinnamomum zeylanicum Blume.) seeds. ASMEC, Annual Symposium of Minor Export Crops, Plant Genetic Resource Center, Gannoruwa, Sri Lanka.
  9. Ariyarathne, H.B.M.A., Weerasuriya, S.N. and Senarath, W.T.P.S.K. (2016). Determination and comparison of morphological and chemical characteristics of two selected cultivated accessions and six wild species of Genus Cinnamomum schaeff. Third global conference on Entomology. August 22-24, 2016, Colombo, Sri Lanka.
  10. Weerasuriya, S.N., Munasinghe, R.S. and Wijesinghe, K.G.G. (2016). Hybridization among selected true cinnamon (Cinnamomum zeylanicum Blume.) accessions for varietal improvement. NSF Research Summit 2016, Empowered by Research and Innovation, 7th 8th July 2016, BMICH, Colombo, Sri Lanka. pp 118.
  11. Chathurika, V.G.T., Weerasuriya, S.N. and Jayasinghe, J.M.J.K. (2015). Development of banana fingers coated with leaf gum of true cinnamon (Cinnomomum verum Presl.). Sri Lanka Association for the Advancement of Science, 71 Annual Session, Proc. Part I Abstracts.
  12. Weerasuriya S.N., Munasinghe R.S., Wijesinghe K.G.G. (2014) Effect of sulphur fumigation on cinnamon quills for quality, storage life and food safety. SLCARP International Symposium and the SLCARP Research Journal, Sri Lanka Council for Agriculture Research Policy, Sri Lanka Foundation, Colombo, 11-12 August.
  13. Weerasuriya S.N., Munasinghe R.S., Wijesinghe K.G.G. (2008) Sulphur fumigation for cinnamon quills: present status and future improvements. Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna.
  14. Wijesinghe KGG, Weerasuriya SN, Kumari HRSN (2008) Growth performances of selected cinnamon cultivars at different locations in Matara, Galle, Kalutara and Rathnapura districts). SLASS 64th Annual session, Proc. Part I Abstract.
Soil and Plant Nutrition
  1. Erandika,K.W.D., Tharanga, K.H.G.M.,Samaraweera D.N.,Amarasekara M.G.T.S., Identification of Nutrient Deficiencies Through Visual Deficiency Symptoms of Cinnamon –ABSTRACT in Proceedings of the 9th Annual Research Symposium – 2017, Faculty of Agriculture, Rajarata University of Sri Lanka,2017.
  2. Jayasinghe, G.G., Kumara, K.L.W., Sandamali, S.A.A.W.  Maddegoda, C., Tharanga, K.H.G.M., Nutrient and Physicochemical changes with the Disease Progress of Rough Bark Disease (Phomopsis Spp.) in Cinnamon (Cinnamomum zeylanicum Blume)- SLCARP International Agricultural Research Symposium 2018
  3. Tharanga K.H.G.M., Samaraweera, D.N., Amarasekara M.G.T.S., Erandika, K.W.D., Identification of plant nutrient status based on leaf nutrient deficiency symptoms in cinnamon (Cinnamomum zeylanicum Blume) – Full paper in Proceedings of the Annual Symposium of Export Agriculture Crops (Ed: B. Marambe). 18-19 October 2018, Peradeniya, Sri Lanka
  4. De Silva ., T.I.N. , Samaraweera . D.N., Ginigaddara . G.A.S., Tharanga K.H.G.M , Kodithuwakku., A.N., Effects of Gliricidia sepium and Arachis pintoi on Cinnamon Growing Soil Proceedings of the 10th  Annual Research Symposium 2018, Rajarata University of Sri Lanka.
  5. Pathirage S.S.S. , Tharnga,K.H.G.M., Ampitiyawatta, Evaluation of Organica inputs in Cinnamon (Cinnamonmum zeylanicum Blume) ,Proceeding of 8th international conference on Dry Zone Agriculture  2022 Faculty of Agriculture, University of Jaffna, Sri Lanka , 14thof September 2022.
  6. Nayendra, W.G.N., Tharanga,K.H.G.M., and Yapa,P.I., Effect of Cinnamon wood biochar preparation method on Nutrient retention and Release, Proceeding of 8th international conference on Dry Zone Agriculture 2022 Facullty of Agriculture, University of Jaffna, Sri Lanka , 14thof September 2022
  7. Anuradha M.D., Tharanga K.H.G.M. , Dissanayake M.L.M.C. , Madhurangi H.M.T.T.,,2023, Effect of Cinnamon Leaf Compost on Selected Soil Properties in Cinnamon (Cinnamomum zeylanicum Blume) Growing Soils. Proceedings of the 27th International Forestry and Environment Symposium 2023 of the Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka
  8. Rupasinghe.,C.T., Tharanga.,K.H.G.M., Herath, H.M.S.K., Perera., T.A.N.T., Effect of Dolomite appliciotn on Soil Physicochemical properties of Cinnamon (Cinnamomum zeylanicum Blume) cultivation, ICIET/ Energy and Sustainability/2023/171 , International Conference on Innovation on Emerging Technologies 2023.
Plant Protection
  1. Samarasinghe W.D., Widanapathirana C.U., Jayasinghe G.G., Premathilake U.G.A., Samarasinghe K.B.B.A. (2021) Taxonomy and Identification of the Cinnamon (Cinnamomum zeylanicum Blume.)  Leaf Miner in Sri Lanka, Proceedings of the 5th International Conference of Uva Wellassa University, Sri Lanka, 2021 (https://erepo.lib.uwu.ac.lk/bitstreams/3d50f03b-9348-4955-812e-a994e46c9f3a/download)
  2. Chinthaka U. Widanapathirana, Sheryl A. Yap, Manfred R. Ulitzka, G.G. Jayasinghe (2022) First record and redescription of Helionothrips annosus Wang, 1993 (Thysanoptera, Thripidae) in South Asian region: a pest of True Cinnamon Tree, Cinnamomum verum J.Presl. in Sri Lanka,  Check List 18 (6) (2022) : 1195–1201 https://doi.org/10.15560/18.6.1195
  3. S. Naguleswaran, Widanapathirana C., Wijeweera A.A, Wijesundara N.M. (2023) Identifying the impact of Leaf Miner (Acrocercops spp.) infestation on quantity of essential leaf oils of cinnamon (Cinnamomum zeylanicum Blume), 7th International Research Conference of Uva Wellassa University, 17 – 18 August 2023, Uva Wellassa University of Sri Lanka, pp 176. https://irc.uwu.ac.lk/wp-content/uploads/2023/08/IRCUWU2023-Proceedings-F3.pdf
  4. KBS Madhusha, CU Widanapathirana, MLMC Dissanayake  and H.M.T.T. Madhurangi (2022) Evaluation of Insecticidal Potentials of Selected Plant Extracts against Cinnamon Nursery Thrips (Helionothrips annosus Wang), Undergraduate  Research Symposium on Export Agriculture, Sabaragamuwa University – 2022 University of Sabaragamuwa, Sri Lanka
  5. Jeewantha S., Widanapathirana C.U., Bandusekara S., Jayasinghe G.G (2023) Taxonomy, Life Cycle description and Damage Assessment of Thalassodes immissaria Walker 1861 (Lepidoptera: Geometridae) in Cultivated Ceylon Cinnamon (Cinnamomum verum J.Presl. synonym: Cinnamomum zeylanicum Blume) in Sri Lanka, Proceedings of the Annual Session – 2023, Department of Wildlife Conservation, Sri Lanka, pp 41
  6. A.S. Ameer, C.U. Widanapathirana, A. Kuruppu, S. Tennakoon (2024) IN-VITRO ANTIOXIDANT AND ANTI-INFLAMMATORY ACTIVITY OF Cinnamomum zeylanicum Blume BARKS AND LEAVES FROM THREE DIFFERENT PROVINCES OF SRI LANKA, 10th SYMPOSIUM IN APPLIED SCIENCES, University of Sri Jayewardenepura, Sri Lanka, 2024
  7. Shanika M.K.S., Chinthaka Widanapathirana, C.P. Rupasinghe, H.M.T.T. Madhurangi, G.G. Jayasinghe (2022) The Use of Sticky Traps for Managing Leaf miners (Acrocercops spp.) and Thrips (Helionothrips annosus Wang) in Cinnamon (Cinnamomum zeylanicum Blume) Nurseries and Plantations in Sri Lanka, Undergraduate Research Symposium on Agricultural Engineering and  Environmental Technology 2022, Faculty of Agriculture, University of Ruhuna, Sri Lanka.
  8. Samaraweera, M.A., Madhurangi, H.M.T.T., Wijekoon, R. and Wasantha Kumara, K.L. (2024) ‘In vitro evaluation of Trichoderma isolates as biocontrol agents against Rigidoporus microporus (Fr.) Overeem causing white root disease in cinnamon’, Proceedings of the International Symposium on Agriculture and Environment, 10 May 2024. p. 160.
  9. Thara Madhurangi, H.M.T., Jayasinghe, G. G., Widanapathirana, C.U. and Maddegoda, C. (2023) ‘Impact of stem canker incidences on yield loss and disease progressive pattern in cinnamon (Cinnamomum zeylanicum Blume)’, Proceedings of the Annual Symposium on Export Agricultural Crops, Matale, 22- 23 June 2023. Volume 6, pp. 202- 213.
  10. Madhuwanthi, R.S., Madhurangi, H.M.T.T. and Gunasekara, N.W. (2023) ‘Investigation of microbial quantity and diversity in processed cinnamon kept under different post-harvest treatments’, Proceedings of the 3rd International Symposium on Agriculture, Chenkalady, 9 March 2023. abstract no. 11, pp. 54-56.
  11. De Silva, N.S.W.T.H., Madhurangi, H.M.T.T., Jayasinghe, G.G., Rathnayake, A.M.G.N. and Premathilake, U.G.A.T. (2022) ‘Identification of mycelial characteristics and in-vitro screening of selected fungicides against Rigidoporus microporus, the causal organism of white root disease of cinnamon’, Proceedings of the 5th National Symposium on Agriculture, Kaluwankerny, 30 March 2022. p.47.
  12. Madhurangi, H.M.T.T., Wanigatunge, R.P., Jayasinghe, G.G. and Attanayake, R.N. (2022) ‘Identification of the fungal pathogen causing leaf blight of Cinnamomum zeylanicum Blume and in vitro screening of Tebuconazole sensitivity’, Proceedings of the Second National Symposium of Sri Lanka Association for Mycology and Plant Pathology, online, 25 June 2022. abstract no. 08, p. 18.
  13. Liyanage, N. M. N., Bandusekara, S. B, Kanchanamala, R. W. M. K., Hathurusinghe, H. A. B. M, Rathnayake, A. M. R. W. S. D.,Pushpakumara, D. K. N. G., Samitha, S, Wijesinghe, K. G. G., Jayasinghe, G. G., Wasantha, K. L. and Bandaranayake, P. C. G. (2021) Identification of superior Cinnamomum zeylanicum Blum germplasm for future true cinnamon breeding in the word. Journal of Food Composition and Analysis 96 (2021) 103747 – Accepted for publication
  14. Bandusekara, B.S., Pushpakumara, D. K. N. G., Bandaranayake, P.C.G., Wijesinghe, K.G.G. and Jayasinghe, G.G. (2020) Field level identification of Cinnamomum species in Sri Lanka using a morphological index. Tropical Agricultural Research: 31(4): 43- 53
  15. Ehelepola, U. W.W.H.K.,De costa, D. M. and Jayasinghe, G. G. (2020) Determination of pathogenicity variation of Colletotricum and Pestalotia spp. associated with rough bark disease of cinnamon, Proceeding of the 6th Faculty of Agriculture Undergraduate Research Symposium, University of Peradeniya, Sri Lanka. 16th July 2020, 58p.
  16. Kasunika, G. W.S., De Costa, D. M. and Jayasinghe, G. G. (2020) Identification of inoculum sources and determination of methods of dissemination of causal organisms of rough bark disease of cinnamon, Proceeding of the 6th Faculty of Agriculture Undergraduate Research Symposium, University of Peradeniya, Sri Lanka. 16th July 2020, 75p.
  17. Ananda, E.H.M., De costa, D. M. and Jayasinghe, G. G. (2020) Molecular identification of fungi associated with rough bark disease infected cinnamon plants in comparison to healthy plants, Proceeding of the 6th Faculty of Agriculture Undergraduate Research Symposium, University of Peradeniya, Sri Lanka. 16th July 2020, 81p.
  18. Madhusanka, W.D.M.I., Pushpakumara, D.K.N.G., Bandaranayake, P.C.G. and Jayasinghe, G. G. (2020) Morphological characterization of cinnamon (Cinnamomum zeylanicum Blume) germplasm in Sri Lanka, Proceeding of the 6th Faculty of Agriculture Undergraduate Research Symposium, University of Peradeniya, Sri Lanka. 16th July 2020, 82p.
  19. Wijeweera, A. A., Hewage, J. W., Jayasinghe, G. G., Hemalika, W. S., Hettiarachchi, S. R. and Wijesinghe, K. G. G. (2020) Maturity dependence of chemical constituents in bark and leaf oil of two varieties of Ceylon cinnamon (Cinnamomum zeylanucum Blume). Proceeding of 7th Ruhunu International Science & Technology Conference (RISTCON) University of Ruhuna, Matara, Sri Lanka, January 22, 2020. 17 p.
  20. Wijeweera, A. A, Madhushika, K. T, Hemalika, W. S, Hettiarachchi, S.R., Hewage, J. W, Jayasinghe, G. G and Wijesinghe, K. G. G. (2020) Maturity and variety dependence of bioactive constituents of Ceylon cinnamon (CinnamomumzeylanicumBlume), Proceedings of 7thRuhuna International Science & Technology Conference (RISTCON), University of Ruhuna, Matara, Sri Lanka. January 22, 2020, Page 100.
  21. Tharangani H. D. A., De Costa D. M. and Jayasinghe G. G. (2019) Identification of fungal pathogens involved with rough bark disease of cinnamon. Plant health 2019: The First National Symposium of Sri Lanka Association for Mycology and Plant Pathology (SLAMPP). 30th Aug. 2019, Kandy, Sri Lanka. 14p
  22. Thilakaratne, D. M. N., De Costa, D. M. and Jayasinghe, G. G. (2019) Growth, pathogenicity and fungicide sensitivity variation of causl agent of rough bark disease in cinnamon. Abstracts, Proceedings of the 5th Faculty of Agriculture Undergraduate Research Symposium, University of Peradeniya, Sri Lanka 21st February 110p.
  23. Gamage, K. M., De Costa, D. M. and Jayasinghe, G. G. (2019) Molecular identification of causal organism of rough bark disease of cinnamon in Galle District, Sri Lanka. Abstracts, Proceedings of the 5th Faculty of Agriculture Undergraduate Research Symposium, University of Peradeniya, Sri Lanka 21st February 117p.
  24. Jayasinghe, G. G., Kumara, K. L. W., Sandamali, S.A.A.W.,Maddegoda, C. and Tharanga, K.H.G.M. (2018) Studying nutritional and physicochemical changes with the disease progression of rough bark disease (Phomopsis spp.) in cinnamon (Cinnamomum zeylanicum Blume). Abstracts: Proceedings of the 2nd International Research Symposium of Sri Lanka Council for Agriculture Research Policy, Taj Samudra Hotel, Colombo. 9th -10th August 2018.
  25. Jayasinghe, G. G., Senaratne, G., Hemachandra, K. S., Wijesinghe, K. G. G., and Weligamage, S. (2018) Formulation of package of agronomic practices to improve the productivity of cinnamon (Cinnamomum zeylanicum blume) lands in Sri Lanka. Proceedings of the Annual Symposium on Export Agriculture Crops (Ed: B. Marambe), 18 – 19 October 2018. Peradeniya, Sri Lanka, (paper submitted)
  26. Chinthaka, N. D. G. A., Jayasinghe, G. G., Jayasingha, H.A.S.L. and Abhiram, G. (2018) Effect of storage conditions to minimize contaminants of Ceylon Cinnamon quills (Cinnamomum zeylanicum Blume). Abstracts: Proceedings of the 2nd International Research Symposium, Uva Wellassa University, Budulla, 9000, Sri Lanka. 1st – 2nd February 2018, p 291.
  27. Jayasinghe, G. G., Kumara, K. L. W., Wijayawardhana, M. W. G. C., Wijesinghe, K. G. G. and Priyangika, K.M.M. (2017) Rough bark disease of cinnamon (Cinnamomum verum): disease symptoms development and the causal agent with special reference to its morphology, histopathology and nutritional states of affected plants. Proceedings of the Symposium on Minor Export Crops (Ed: B. Marambe), 16-17 March 2017. Peradeniya, Sri Lanka, Vol 4, 63-72pp.
  28. Jayasinghe, G. G., Ketakumbura, K. H. M. P. K., Wijesinghe, K. G. G., Hemachandra, K. S. and Weligamage, S. (2016) Relationship between pest and disease   incidences and agronomic operations implemented by farmers in cinnamon (Cinnamomum zeylanicum Blume) fields in Southern Sri Lanka. Sir Lanka Journal of Food & Agriculture, 2(1): 33 – 38
  29. Jayasinghe, G. G. and Mallik, B. (2015) Development of a model for mass production of Neoseiulus longispinosus: a phytoseiid predator of spider mites. Sir Lanka Journal of Food & Agriculture,1(2): 15 -21
  30. Jayasinghe, G. G. (2015) Determination of economic injury levels of wood boring moth (Ichneumoniptera cinnamomumi Tosevski) with reference to the age of cinnamon (Cinnamomum zeylanicum Blume) plantation, In: Marambe, B. (Ed). Annual symposium of minor export crops, Vol 3, 62-69pp, 13-14 August. Peradeniya, Sri Lanka
  31. Senaratne, G., Jayasinghe, G. G., Hemachandra, K.S., Wijesinghe, K.G.G., Samaraweera, D. N. and Weligamage, S. (2015) Behaviour of soil invertebrates in cinnamon (Cinnamomum zeylanicum Blume) cultivation under different crop management practice, In: Marambe, B. (Ed). Annual symposium of minor export crops, Vol 3, 5-15pp, 13-14 August. Peradeniya, Sri Lanka
  32. Pathirana, S. M., Jayasinghe, G. G., Chandrasena, G. and Weerawansha, A. N. R (2015) Determination of microbial quality and quantity of stored cinnamon quills. In: Marambe, B. (Ed). Annual symposium of minor export crops, Vol 3, 97-104pp, 13-14 August. Peradeniya, Sri Lanka
  33. Dalandawatta, N.P., Jayasinghe, G. G., Chandrasena, G. and Weerawansha, A. N. R (2015) Assessment of oil yield and quality in cinnamon (Cinnamomum zeylanicum Blume) leaves under different severity levels of two types of leaf galls (Trioza cinnammomi, Erioplytes boisi). In: Marambe, B. (Ed). Annual symposium of minor export crops, Vol 3, 91-96pp, 13-14 August. Peradeniya, Sri Lanka
  34. Jayasinghe, G. G., Ketakumbura, K. H. M. P. K., Wijesinghe, K. G. G., Hemachandra, K. S. and Weligamage, S. (2014) Relationship between pest and disease   incidences and agronomic operations implemented by farmers in cinnamon (Cinnamomum zeylanicum Blume) fields in Southern Sri Lanka. Book of abstract: SLCARP International Agricultural Symposium 2014, Sri Lanka Council for Agricultural Research Policy, 11 – 12 August, Colombo, Sri Lanka, p 43.
  35. Jayasinghe, G. G. and Mallik, B. (2014) Development of a model for mass production of Neoseiulus longispinosus: a phytoseiid predator of spider mites. Book of abstract: SLCARP International Agricultural Symposium 2014, Sri Lanka Council for Agricultural Research Policy, 11 – 12 August, Colombo, Sri Lanka, p 49.
  36. Jayasinghe, G. G. and Mallik, B. (2014) Management of two spotted spider mite, Tetranychus urticae Koch infested tomato using phytoseiid predator, Neoseiulus longispinosus (Evans), as a biological control agent at green house condition. International symposium on Agriculture and Environment 2014, University of Ruhuna, Sri Lanka, pp 31 – 35.
  37. Jayasinghe, G. G. (2013) Integrated management of cinnamon clear wing (Ichneumoniptera cinnamomumi Tosevski) using earthing-up, insecticides and sex pheromones. Proceeding of the Annual Symposium on Minor Export Crops (Ed: B. Marambe), pp. 73 – 79.
  38. Jayasinghe, G. G. and Ratnasoma, H. A. (2013) Efficacy of fungicides for managing rough bark disease (Phomopsis sp.) in cinnamon (Cinnamomum zeylanicum Blume). Association for the Advancement of Science, 69th Annual session, Proceeding Part 1- pp. 35
  39. Buddhika. D. M., Herath, H. M. S. K. and Jayasinghe, G. G. (2013) Effect of weed control methods on soil invertebrate community in cinnamon (Cinnamomum zealanicum Blume) ecosystem. Proceedings of the Research Symposium of Uva-Wellassa University, December 12-13, 2013, pp 10 – 12
  40. Jayasinghe, G. G. (2012) Identification and management of stored product pests of cinnamon quills (Cinnamomum zeylanicum Blume). Proceeding of the Annual Symposium on Minor Export Crops (Ed): Marambe, B. pp. 95 – 100
  41. Senaratne, G., Jayasinghe, G. G. and Chandrasena, G. (2012) Control measures for leaf fall disease in clove (Sysygium aromaticum L.) in Southern Sri Lanka. Proceedings of the Research Symposium of Uva-Wellassa University, November 22-23, 2012, pp 175 – 178.
  42. Jayasinghe, G. G. (2011) Pests and diseases management of cinnamon. Proceeding of the International Symposium on “Technology to reach future aspirations of Ceylon Cinnamon”, 18th – 19th July 2011, Faculty of Agriculture, University of Ruhuna, Sri Lanka, abstracts, pp. 18 – 21
  43. Jayasinghe G G and Mallik B (2010) Growth stage based Economic Injury Levels for two spotted spider mites, Tetranychus urticae Koch (Acari: Tetranychidae) on Tomato Lycopersicon esculentum Mill., Tropical Agriculture Research., 22 (1): 54 – 65.
  44. Jayasinghe G G and Mallik B (2010) Seasonal abundance of the two spotted spider mites, Tetranychus urticae Koch (Acari: Tetranychidae) in tomato ecosystem. Faculty of agriculture, University of Ruhuna, International Symposium 2010, Proceedings Part 1 –Abstract p. 9
  45. Dharshanee H L C, Jayasinghe G G and Wijesinghe K G G (2010) Evaluation of the efficacy of water soluble sulfur to control leaf blight disease (Colletotricum gloesporioides) and leaf gall mites (Eriophyes boisi) of Cinnamon (Cinnamomum zeylanicum Blume) nursery. Sri Lanka Association for the Advancement of Science, 66th Annual Session – 2010, Part -1, Abstract, p 36
  46. Jayasinghe G G and Mallik B (2008) Two spotted mite (Tetranychus urticae Koch (Acari: Tetranychidae) distribution and seasonal abundance on tomato. Proceedings of “Leslle Coleman” Memorial National Symposium on Plant Protection, 4 – 6 December 2008, University of Agricultural Sciences, Bangalore, India.
  47. Darshanee H L C, Jayasinghe G G, Wijesinghe K G G and Gunaratna W D L (2007) Effects of different weed control methods in Cinnamon (Cinnamomum verum Presl.)  Proceedings of the 21st Asian Pacific Weed Science Society Conference (Editors: B.Marambe, U.R. Sangakkara, W.A.J.M. De Costa, and A.S.K. Abeysekara), 2-6 October 2007, Colombo, Sri Lanka, 78-81.
  48. Jayasinghe G G, Gunaratne W D L, Dharshanee H L C, Griepink F C, Louwaars N P and Stol W (2006) Environmentally sound insect control in Cinnamon: A feasibility study on the use of insect pheromones to replace large-scale use of insecticides. Report 119, Plant Research International B. V., Wageningen
  49. Jayasinghe G G (2005) Cinnamon wood boring moth (Synanthedon sp.): Overview of biology, ecology and assessment of yield loss, Workshop on “Environmentally sound insect control in cinnamon” organized by Dept. of Export Agriculture and Plant research International, Netherlands 25th March 2005, Galle, Sri Lanka.
  50. Wijesinghe K G G, Samaraweera D N, Jayasinghe G G, and Gunaratne W D L (2004) Development of Cinnamon (Cinnamomum verum Presl) Selections for Higher Yield with Better Quality characteristics, Competitive Contract Research Grant Programme; Presentations of complete Research Projects, Council for Research Policy (CARP) Colombo, pp 41 -55.
  51. De Silva D P P, Darmadasa M, Jayasinghe G G, Ratnasoma H A and Perera H A S (2003) Plant protection research in Export Agriculture Crops, Plant Protection Research, proceedings of the workshop on status and future trends in plant protection research in the national agriculture research system 28th Nov. 2003 (Ed.) Gunasena H P M, Chandra Padmini S M P, CARP, Colombo, Sri Lanka, pp. 127 – 137
  52. Jayasinghe G G, Wijesinghe K G G and Gunaratne W D L (2002) Impact of different weed control methods on bark yield of cinnamon (Cinnamomum verum Presl.), Sri Lanka Association for the Advancement of Science, 58th Annual Session – 2002, Part -1, Abstract, p 76
  53. Jayasinghe G G and Wickramasinghe P J (2001) Control measures of wood boring moth (Synanthedon sp.) in cinnamon (Cinnamomum verum Presl.). Sri Lanka Association for the Advancement of Science, 57th Annual Session – 2001, Part -1, Abstract.
  54. Darmadasa M, Jayasinghe G G (2000) Clear wing moth (Synanthedon sp.), new pest damage in cinnamon, (Cinnamomum verum Presl.) cultivation and its damage severity in Sri Lanka. Sri Lanka Association for the Advancement of Science, 56th Annual Session – 2000, Part -1, Abstract.
  55. Wijesinghe K G G, Jayasinghe G G, Premakumara K V S and samaraweera D N (2000) Selection of high yielding citronella types with good quality and easy maintain, Sri Lanka Association for the Advancement of Science, 55th Annual Session – 1999, Part -1, Abstract.
Book Chapters

Jayasinghe G G.  Rajapakse R H S, Wasantha Kumara K L, Disna Ratnasekera and N K B Adikaram (2020) Chapter 8. Pest and Disease of Cinna. In Senaratne, R and Pathirana, R. (Eds) Cinnamon: Botany, Agronomy, Chemistry and Industrial Applications. Springer Nature, Switzerland.

Post Harvest Technology Division

  1. Wijeweera, A. A., Hewage, J. W., Jayasinghe, G. G., Wadumethrige, S. H., Hettiarachchi, S. R., Wijesinghe, K. G. G.  (2020). Maturity dependence of quality, quantity and chemical constituents of bark and leaf oil of Ceylon Cinnamon (Cinnamomum zeylanicum Blume) Ruhuna Journal of Science, 11 (1), 1-12. DOI: http://doi.org/10.4038/rjs.v11i1.82
  2. Wijeweera A.A., Widanapathirana C.U., Perera G.S.M and Jayasinghe G.G., (2022) Quality Variation in Processed Cinnamon along the Value Chain in Southern Province of Sri Lanka, International Symposium on Agriculture and Environment 2022, University of Ruhuna, Sri Lanka.
  3. Dayarathne V.S.P., Wijeweera A.A., Manamgoda D.S., Jayasinghe G.G.  and Widanapathirana C.U., (2022) Extracts of local medical plants as an alternative organic fungicide for pathogens causing cinnamon rough bark and leaf blight, International Symposium on Agriculture and Environment 2022, University of Ruhuna, Sri Lanka.
  4. K.A.S. Hansika, K.A.S. Kodikara, A.A. Wijeweera, G. Senanayake, L.P. Jayatissa, (2022) Vegetative and reproductive phenology of Cinnamomum verum J. Presl grown in intermediate climatic zone of Sri Lanka, J.Natn.Sci.Foundation Sri Lanka 2022 50 (1): 87 – 99 DOI: http://dx.doi.org/10.4038/jnsfsr.v50i
  5. Wijeweera AA, Hettiarachchi SR, Hewage JW, Wadumethrige SH and Jayasinghe GG. (2022) Comparison of yield and quality of oil in Ceylon Cinnamon (Cinnamomum zeylanicum Blume) among different agro ecological zones, Proceedings of 9th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka. page 72.
  6. Ranasinghe M.H.M., Wijeweera A.A., Thilakarathna H.R.M.G.C., (2021) Development and quality evaluation of Cinnamon (Cinnamomum zeylanicum) incorporated ready-to-serve Nelli (Phyllanthus emblica) beverage, 13th Annual Research Symposium Proceedings, Rajarata University of Sri Lanka.
  7. Sujani L.M.S., Wijeweera A.A., Sinthuja L.P., Tharanga K.H.G.M., Widanapathirana C.U., Comparison of proximate and nutrient analysis of selected accessions of true cinnamon (Cinnamomum zeylanicum Blume) at different maturity levels, Proceedings of 7th International Conference on Dry Zone Agriculture, ICDA 2021, Faculty of Agriculture, University of Jaffna, Sri Lanka.
  8. Wijeweera A.A., Jayasekara L.K.T.S., Fernando A.Y.L., Kumari W.G.S.M., Antifungal activity of true cinnamon (Cinnamomum zeylanicum Blume) essential oil against post-harvest pathogens, Aspergillus, Penicillium and Fusarium, Proceedings of the Open University Research Session (OURS 2021), September 16 & 17, 2021
  9. Ranatunga B.U., Wijeweera A.A., Fernando A.Y.L., Evaluation of the chemical properties, physical properties and sensory attributes of cinnamon (Cinnamomum zeylanicum Blume) oleoresin incorporated cookies, Proceedings of 8thruhuna international science & technology conference, University of Ruhuna, Matara, Sri Lanka. February 17,2021
  10. Jayanidu S.B.I., Wijeweera A.A., Alwis P.L.A.G., Bandara K.M.T.S. and Jayasinghe G.G., Effect of Mechanical Tools on Cinnamon (Cinnamon zeylanicum Blume) Harvesting, Proceedings of the undergraduate research symposium on agricultural engineering & environmental technology 2021, Department of Agricultural Engineering, Faculty of Agriculture, University of Ruhuna, Sri Lanka
  11. Wijeweera AA, Hettiarachchi SR, Hewage JW, Wadumethrige SH and Jayasinghe GG. (2021) Differences of chemical constituents in three physiological stages of Ceylon Cinnamon, (Cinnamomum zeylanicum Blume) Proceedings of the Open University Research Session (OURS 2021), The Open University of Sri Lanka. page 26.
  12. Wijeweera AA, Hewage JW, Wadumethrige SH, Hettiarachchi SR and Jayasinghe GG. (2021) Position variation of oils extracted from the stem of Ceylon  Cinnamon,(Cinnamomum zeylanicum Blume) Proceedings of 8th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka. page 14.
  13. Wijeweera AA, Madhushika KTS, Wadumethrige SH, Hewage JW, Hettiarachchi S. R and Jayasinghe GG. (2021) Agroecological dependence of the quantity of phytochemicals in barks of Ceylon Cinnamon, (Cinnamomum zeylanicum Blume), Proceedings of 8th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka. page 16.
  14. Wijeweera AA, Hewage JW, Wadumethrige SH, Hettiarachchi SR and Jayasinghe GG. (2021) Effect of agro-ecological variation on growth and cinnamon oil yield of Ceylon Cinnamon, (Cinnamomum zeylanicum Blume) Proceedings of 8th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka. page 22.
  15. Wijeweera, A. A, Hewage, J. W, Jayasinghe, G. G , Hemalika,W. S, Hettiarachchi, S. R and Wijesinghe, K. G. G. Maturity Dependence of Quality, Quantity and Chemical Constituents of Bark and Leaf Oil of two varieties of Ceylon Cinnamon (Cinnamomum zeylanicum Blume), Proceedings of 7th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka. January 22, 2020, Page 17.
  16. Wijeweera, A. A, Madhushuka, K.T.S, Hemalika, W. S, Hettiarachchi, S.R., Hewage, J. W, Jayasinghe, G. G and Wijesinghe, K. G. G, Maturity and variety dependence of bioactive constituents of Ceylon cinnamon (Cinnamomum zeylanicum Blume), Proceedings of 7th Ruhuna International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka. January 22, 2020, Page 100.
  17. Hansika K.A.S., Kodikara K.A.S., Wijeweera A.A., Senanayaka G., Wijesinghe K.G.G.,., Jayathissa L.P., Peelability of improved accessions and commonly used verities of   Cinnamomum verum J. Presl: implication for harvest management, 17th Academic Sessions (2020), University of Ruhuna.
  18. Abeysinghe M.G.D., Wijeweera A.A., Alakolanga A.G.A.W, Da Silva P.D.P.M., Effect of dryer conditions on quality of Cinnamon (Cinnamomum zeylanicum Blume) quills before packing, International Research Conference Uwa Wellassa University, 2019.
  19. Perera P.C.D., Bandara K.M.L.W., Wijeweera A.A., Wickramasinghe W.M.R.H., Kumara K.L.W., A preliminary Investigation on potential use of Cinnamon outer corky layer as a substrate for Pleurotus ostreatus (Oyster Mushroom) cultivation, 16th Academic Sessions 2019, University of Ruhuna, Sri Lanka, ISSN 2362-0412
  20. Dilani W.G.M., Wijeweera A.A., Jayasinghe H.A.S.L., Jeewanthi P.W., Evaluation of the quality of Cinnamon quills (Cinnamomum zeylanicum Blume) after primary processing in Matara District, International Research Symposium (2018), Uwa Wellassa University, Sri Lanka.
  21. Wijeweera A.A., Widanapathirana C.U., Jayasinghe G.G., Wijesinghe K.G.G., Variations of quality parameters of cinnamon quills through the value chain after primary processing in Matara district, Annual Symposium of Export Agricultural Crops (ASEAC), 2018.
  22. Hansika K.A.S., Kodikara K.A.S., Wijeweera A.A., Wijesinghe K.G.G., Senanayaka G., Jayathissa L.P., Perception of the workers in the cinnamon industry on seasonal variations of peelability of Cinnamon, 15th Academic Sessions (2018), University of Ruhuna.
  23. Kumudini A.J.P., Wijeweera A.A Jayasinghe H.A.S.L., Jeewanthi P.W., Wijesinghe K.G.G., Evaluation of Yield Variations of True Cinnamon (Cinnamomum zeylanicum Blume) in Different Agro-Ecological Regions in Matara District, International Research Symposium (2017), Uwa Wellassa University, Sri Lanka.

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