Research Symposium-2012

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2D to 3D Image Visualizer
(Uva Wellassa University of Sri Lanka, 2012) Bandara, P.B.M.M.A.; Wickramarathna, S.D.H.S.
The ordinary photographs are only considered about just an individual photograph itself. Since these photographs act individual character in a scene there is no way to visualize a connection between them. Also browsing of each captured photographs is not relative to other though these photographs are in the same scene. But there is a possible way to reorganize the relative position and orientation of ordinary photographs which are captured by a digital camera device. That is, reorganize the important features on each photographs using feature detection algorithm, then match each photograph by matching these features, then estimate the relative camera pose against each photograph in order to calculate relative replacement and orientation of each photographs on 3D environment. It is useless to calculate the 3D replacement without visualizing them, because the real world scenes are in 3D environment. Therefore, 3D visualizer, to visualize all calculated photographs is developed with very user friendly and interactive way. This project is to develop a system for interactively browsing and exploring unstructured collections of photographs of a scene using a three-dimension interface.
Analysis of Diversification Strategies Adopted by Tea Plantations
(Uva Wellassa University of Sri Lanka, 2012) Madhusankha, B.P.; Mahindarathna, M.G.P.P.
Sri Lankan plantation crop industry mainly consists of Tea, Rubber and Coconut while tea plays a dominant role in Sri Lankan economy being the plantation crop with extent of 80,185 ha. Plantation crop industries have been listed under 23 Regional Plantation Companies. In a new competitive era, organizations try to improve its performance by applying different strategies namely crop diversification strategies and non-crop diversification strategies. Crop diversification strategies would be diversification out of core crop strategies while non crop diversification seems to be focused on core crop to utilize under - utilized resources to gain maximum efficiency out of them or diversification with non-related business activities (Daud et al, 2009). Ultimately, these strategies are applying to boost the performance and stay competitive in the market. But the question here is whether these crop diversification strategies and operations are really improves the company performance. If yes what will be the optimal level which will maximize the performance of the company? Hence, the main objective of the study is to evaluate the effectiveness of the diversification strategies adopted by Kahawatte Plantations PLC in different perspectives. Other objectives include identification of the impact and relationship of diversification strategies on the performance of the listed diversified estates comes under Kahawatte Plantations Company and determination of the optimum level of crop diversification which maximizes performance of listed diversified estates of Kahawatte Plantations Company.
Analysis of Organic Products Supply Chain in Badulla District
(Uva Wellassa University of Sri Lanka, 2012) Perera, S. A.P. M.; Mahindarathne, M.G.P.P.
Organic Agriculture in Sri Lanka has been gradually awakened and the role and participation of key organizations such as private sector organizations, non- government and government organizations have been strengthened. By 20 10, the organic cultivation covered over 43,664 hectares of land, which was I.7% of the total agricultural land in the country (FiBL- IFOAM survey, 2012).Although local marketing does not yet go through the Formal inspection and certification process, the production and processing for export involves a systematically organized formal inspection and certification which is carried out be internationally accredited certification bodies. There are number of non- government organizations, farmer organization, private- owned organic farms and export companies who are involving in the promotion of organic agriculture production and marketing in Badulla district. However, there is no any documented information source about the organic agriculture supply chain in the district. Developing and managing supply chains require an integrated approach in which all the stakeholders should collectively plan and control all the functions to achieve the sustainability. In this backdrop, it is a compulsory exercise to study the present status of the organic supply chain in the Badulla district and the present study aimed at examining the existing chain components, different interactions existed, the quality of the interactions and any problematic interfaces existing within the chain.
Android Application for Vehicle Security System
(Uva Wellassa University of Sri Lanka, 2012) Perera, P.D.S.; Wickramarathna, S.D.H.S.
Current vehicle security systems available in the market are based on Infrared or Radio Frequency technology using a circuit which is attached to the key. This Security system is controlled by a small gadget that is always attached to the key of the vehicle. One of the weaknesses in the current system is that anyone who has the key can unlock the functions of the vehicle and it is one of the major security threats. Proposed system can eradicate this threat by using the password base control system with Bluetooth technology which applicable to any Android Mobile phone (G. Held). This research is based on designing and developing an Android application for vehicle security system [2] which will facilitate the door locking/opening, parking light on/off, air conditioning system on/off and engine off. This application supplies a convenient, efficient and reliable security service to the vehicle owners
Antibacterial Activity of Camellia Sinensis Leaf Extract against Wound Pathogenic Bacteria
(Uva Wellassa University of Sri Lanka, 2012) Silva, P. D. P. M. D.; Chandrasena, G.; Jayasinghe, H. A. S. L.
Tea is one of the most widely consumed beverages in the world today, second only to water. Its medicinal properties have also been widely explored and the most significant effects on human Health have been observed with the consumption of green tea (Cabrera ct al., 2006). Green tea and fresh tea leaf extract have same chemical compositions as well as the same therapeutic benefits, this. the present study was carried out to investigate the anti-microbial activity of niethanolic extracted from fresh tea leaves against wound pathogenic bacteria with compare to the commercially available antibiotic called “Providence iodine (PVPI)” which is commonly used against wound pathogens, to see the potential therapeutic effect of tea leaf extract to formulate a natural antibiotic treatment for wound healing through a separate investigation as a value addition strategy in tea
Applicability of Estimating Evapo-Transpiration using Different Methods for Badulla Region
(Uva Wellassa University of Sri Lanka, 2012) Withanage, N.S.; Dharmadasa, R.A.P.I.S.; Kodikara, K.M.S.
Potential evapo-transpiration (PET) is an essential tool widely used in hydrological studies. The magnitude and the variation of PET are required for water resources planning and management, proper irrigation scheduling, assessment of irrigation efficiency in different irrigation methods and estimation of water supply requirements of irrigation projects. Owing to the wide ranging inconsistency in meteorological data collection procedures and standards, two types of PET equations have been used by different authors; empirical equations with lower data requirement and physically-based equations that require more data. The International Commission for Irrigation and Drainage (ICID), the Food and Agriculture Organization (FAO) and the American Society of Civil Engineers (ASCE) have adopted the Penman-Monteith (PM) method as the standard way to compute PETfrom climate data. PM is widely used as it is predominantly a physically-based approach that can be used globally and that has been widely tested using Lysimeter data from a wide range of climatic conditions (Itenfisu et al., 2000). When the data are limited, PET is calculated by estimating the absent parameters indirectly from the available data to use in PM equation (Allen et al., 1998) or by the use of less data intensive empirical equations some of which are based on temperature (e.g. Thornthwaite, 1948; Blaney and Criddle, 1950; Romanenko, 1961; Hargreaves, 1975 and Kharrufa, 1985). It is generally accepted that empirical formulae may be reliable in the areas and over the periods for which they were developed, but large errors can be expected when they are extrapolated to other climatic areas without recalibrating the constants involved in the formulae (Hounam, 1971). There is a scarcity of accurate meteorological data in Uva Province of Sri Lanka for estimating PET using standard PM method. Therefore, this research was conducted to analyze and compare temperature-based methods with the standard Modified Penman- Monteith (MPM) method and to select the best equation/s which can be applied to estimate the PET of the region.
Application of Cleaner Production Techniques in Tea Processing
(Uva Wellassa University of Sri Lanka, 2012) Perera, H.A.A.U.; Gunathilaka, R.P.D.; Nawarathna, D.M.P.C.
Tea is the world’s most popular beverage (Anonymous, 1993). Sri Lanka is a world famous tea producer, well known for its inherited taste and aroma and it is the world’s fourth largest producer of tea and the industry is one of the country's main sources of earning foreign exchange with tea accounting for I .S% of the GDP, generating roughly $700 million annually (Dissansyske, 2008). However, during last few decades, the sustainable growth of Sri Lankan tea industry had to face challenges (Jayakodi and Athauda, 2009). In today’s dynamic and turbulent environment, industry survival and growth depends on appropriate technology integration and changing management practices. lt was identified that the Sri Lankan tea industry with a history of over a century is facing global challenges requiring certain changes to the technology, work practices, work norms and attitudes to overcome problems faced at present (Senarathne el al., 2004). Sri Lanka’s COP has been recording steady increases and is now around US 1.7•î per kg, which is well above that of Bangladesh, India, Kenya and Vietnam. Possible ways of enhancing profitability are to fetch attractive prices for their produce, increase their productivity level and to reduce the COP (Yogaratnam, 2007). To address these issues, reduction of wastage and increasing resource efficiency using cleaner production techniques will be possible. Cleaner production is the continuous application of an integrated preventive strategy to processes, products and services, to increase eco-efficiency and to reduce risks to humans and the environment. Cleaner production concept was first introduced by United Nations Environmental Program (UNEP) in 1989 as a new innovative approach to resource conservation and environment management (Jayakodi and Athauda, 2009). Cleaner production techniques are important in reducing wastage. Therefore this preliminary study is focused on cleaner Production audit in tca processing giving special reference to Telbedde Estate.
Assessing the Effect of Incorporating Kithul(Caryotaurens) Flour on Stabilizing Ability and Sensory Properties of Set-type Yoghurt
(Uva Wellassa University of Sri Lanka, 2012) Wijayasekara, K.N.; Abesinghe, A.M.N.L.; Samarasekara, S. C.
Kithul flour is the water soluble carbohydrates extracted from the pith of Kithul tree (Caryota urens). It has high level of polysaccharides which may possess stabilizing ability and may be useful to replace the existing stabilizers (gelatin) in set-yoghurt manufacturing. Presently, adding stabilizers as a blend is more widely used in the dairy industry and it leads to overcome limiting properties associated with a specific compound. Therefore, this study was carried out to assess the effect of incorporating water-soluble carbohydrates of Kithul on stabilizing ability and sensory properties of yoghurt. Fresh cow milk, Sugar, Kithul flour, gelatin, skim milk powder, starter culture (VC 350 CHR Hansen) and Kithul flavor were used to prepare the yoghurt. Kithul flour levels changed as 0.9%, 1.2%, 1.5% and 1.8%. Each treatment was replicated three times and evaluated for sensory properties such as mouth feel, taste, texture, colour, odor and overall acceptability using trained sensory panel. Then, the selected level was used to find the best ratio of kithul flour: gelatin. The gelatin level was changed as 0.1%, 0.2%, 0.3% and 0.4% with the selected level of kithul flour. Tests were carried out to find out the fat content, total solid content, titratable acidity and pH, yeast &mould and coliform count and compared with existing yoghurt. Data were analyzed using one way ANOVA (CAD) and Friedman non-parametric test in MINITAB 14. Results of this study support that the use of 1.5% (w/v) kithul flour was able to replace 0.7% (w/v) gelatin without affecting the texture, colour, taste and odour of yoghurt having 27.7% of total solids. By that, the recommended percentage of gelatin was reduced from 1% to 0.3% .In addition to that, incorporation of kithul flour in to yoghurt reduced post fermentation acidification compared to the control during refrigerated storage. As the specifications of final product (titratable acidity and microbial population) were within the prescribed SLS standards, the product had storage life of thirty days at 4 *1 °C without any quality deterioration.
Automated Highway Entrance Management System
(Uva Wellassa University of Sri Lanka, 2012) Wimalasena, A.D.K.B.N.
Automated Highway Entrance Management System is a complete system which helps to manage the complex and time consuming manual tasks of present system in to a very efficient automated manner. Specialty of toll based highway is traveler have to pay some amount of money for using highway. Main intention of Highway is help to achieve transportation in less time. But it may take time of user for its toll collecting process at entering and leaving gates. This process may causes for traffic at these points. This system provide automated method for toll collecting and other functions bind with its process and eventually save time of traveler and increase productivity of Highway. The system reduces the manual tasks occur at highway entering and leaving gates.
Biodiesel Production from Tallow
(Uva Wellassa University of Sri Lanka, 2012) Gamlath, G.S. D; Samaraweera, A.M.; Wickramasingha, W.K.
Biodiesel from inedible beef tallow, mostly produced by leather manufacturing can provide an alternative for petroleum diesel. Tallow which is attached to the flesh side of the raw hide is considered as waste in leather Manu factoring process. This waste tallow can be used to produce biodiesel. It will reduce tl1e amount of tanners waste materials and also it will reduce the cost of removing ta very wastes. Methyl esters are the product of Tran’s esterification of fat and oil with methanol using an alkaline catalyst (KOH). In addition, the process yields glycerol, which has large applications in other industries, such as pharmaceuticals, food and plastic industries. The process of trans esterification is a Elected fry various conditions such as mode of reaction condition, alcohol to tallow molar ratio, kind of alcohol, type and amount of catalysts, reaction time, temperature and purity of reactants (Cunha «/ o/., 2009).
Characterizing of Vein Quartz Occurrences in Sri Lanka
(Uva Wellassa University of Sri Lanka, 2012) Piumalee, W.D.H.; Cooray, J.T.; De Silva, S.N.
Sri Lanka endowed with vast potential and exquisite varieties of industrial minerals. Unique physical and chemical properties of high grade quartz as a raw material for high-tech products. The characteristics of vein quartz vary with the geological environment, and although it is primarily composed of silicon dioxide, gaseous, liquid, solid trace elements can occur within crystals or between crystal boundaries. In Sri Lanka, silica is available in two forms as free silica and combined with other elements and compounds. Quartz with extreme purity over 99 percent of Si02 is found in many parts of Sri Lanka as discordant veins and they are mainly confined to the central Highlands. Highland/Vijayan complexes boundary zone. Contain vein quartz apart of the deposits within Highland complex. The origin and provenance of vein quartz in Sri Lanka is highly a debatable aspect.
CMOS Analog Integrated Circuits for Cochlear Implant System
(Uva Wellassa University of Sri Lanka, 2012) Duminda Kumara, L. A.; Paasi, Ari; Fdirisinghe, Mahesh
For centuries, people believed that it's a miracle to restore hearing to the complete disability of hearing (deaf). About forty years ago scientists first attempted to restore normal hearing to the deaf by electrical stimulation of the auditory nerve (Philipos, 1998). With the modern developments, the auditory sensations elicited by electrical stimulation give comfortable hearing for the deaf people. Final product of the latest research called "cochlear implant",which can be implanted in the inner ear and can restore partial hearing to profoundly deaf people.Patients withcochlear implants can now communicate without lip-reading or signing, and some can communicate even over the telephone. This paper describes the design and simulation of a low power signal processor which can be used as analog signal processor of main Cochlear implant system using 0.13 um CMOS technology. The signal processor circuit which is made up of band pass filter, envelop detector and dual slope convertor are based on newly design operational transconductance amplifier (OTA).The propose system has been designed using CMOS technology by means of Cadence CAD tool. The simulations were performed under normal condition using Hspice Simulator and Cscope graphical circuit simulator software for Linux.
A Comparative Study on Culture of Kappaphycusalvarezii Using Cage Culture and Monocline Culture in Kiranchi Bay, Kilinochi.
(Uva Wellassa University of Sri Lanka, 2012) Ganesalingam, Z.; Jayamanne, , S.C.; Pahalawattaarachchi, V.
Kappaphycusalvarezii is economically important red tropical seaweed with a high demand due to containing polysaccharides in its cell wall and being the most important source of n-carrageenan in the world. The market for carrageenan grows rapidly since current sources of cultivated eucheumatoids seems incapable of meeting the high demand, at least in quality, price and volume for the requirements of the processing industry. Commercial cultivation of K. alvarezii was developed in the Philippines during the latter half of the 1960s using local varieties selected from the wild in comparison to different culture method practices of Kappaphycusalvarezii. The present study was conducted to find out the method more suitable for culturing K. alvarezii in Sri Lanka. Two culture systems, cage culture and monocline culture was conducted at Kiranchi Bay, Kilinochchi for a period of two months using cage culture and monocline method. Healthy seeds were collected from an existing cage culture and propagates approximately 100 g in weight were chosen. In monocline culture, the propagates were tied into nylon lines about 4 meters apart and anchored to the substratum at 25 cm intervals. In total, 75 kg were tied to monocline. In cage culture, cages of 1.5 m long x 1 m wide x 0.5 m height were placed in the bay. The cage frame was covered with mesh and K. alvarezii were tied in parallel lines. Data on initial weight, and weekly weights were taken every week and their growth was measured. The results showed that K. alvarazii gained 58% of initial weight within 2 months in monocline culture while 68% in cage culture. It was noted that the nutrients (Nitrite, Nitrate and unionized Ammonia did not show a significant difference (P>0.05) during the study period in the two culture sites. The growth rate of K. alvarezii is good in Kiranchi bay using both methods are encouraging and further studies may be required to establish culture.
Comparison of Dry Matter Partitioning of Organically and Conventionally Grown Tea for Carbon Sequestration Potential
(Uva Wellassa University of Sri Lanka, 2012) Premarathna, E.N.M.; Mohotti, K.M.; Gunathilaka, R.P.D.; Amarasena, D.
Climate change is evident in almost all the regions in the world. In agriculture, it poses a significant impact in relation to productivity, quality and sustainability. Carbon sequestration is an adaptation strategy to climate change. Organic agriculture has a greater potential to sequester carbon in biomass and soil than most forms of conventional agriculture (Fan et al, 2005). Information on Carbon storage by tea plantations can fill the gap for comparison with native forests and changes in agricultural land use (Kamau et ed., 2008). However, the scientific validations to carbon storage in tea either in conventional and organic systems are scares. Therefore, it was identified important to generate information on dry matter partitioning of the tea bush and to compare the organic carbon content as dry matter partitioning of each part of the tea bush grown conventionally and organically to establish carbon sequestration potentials of organically grown tea as compared to conventionally grown tea
Comparison of Efficacy of Natural Yeast Cell Wall Polysaccharides (Antigen®) Against Commonly Used Antibiotic Growth Promoters in Broiler Diets in Sri Lanka
(Uva Wellassa University of Sri Lanka, 2012) Adikari, A.A.S.Y; Priyankarage, N; Silva, S.S.P; Nambapana, N.M.N.N
Antibiotics have been widely used in animal production for decades in order to obtain high level of production and efficient feed utilization. Even though antibiotic growth promoters show positive effect on the performance of the livestock, use of antibiotics as growth promoters has caused some concerns in public health sectors. Transmission and the proliferation of resistant bacteria via the food chain and presence of harmful residues are the major concerns (Gunal et al., 2006) since Scandinavia and European Union have imposed a ban (Castanon, 2007). The need for developing alternatives is realized and many research studies have been started to identify suitable alternative feed additives that would reduce bacteria penetration and colonization in poultry and perform the same characteristics as the antibiotics. Many such as probiotics, prebiotics, exogenous enzymes and organic acids have been used with some success. Amongst many, yeast cell wall polysaccharides found to be consumer friendly alternative but the efficacy will vary with environment, management practices and feed. No comparative studies have been done in Sri Lanka. This study was conducted to determine the efficacy of an alternative, natural yeast cell wall polysaccharides which are having high affinity binders that can bind competitively to bacteria and prevent there binding to bowel cells, to colonize and caused infection. In the study that was compared with the commonly used antibiotic growth promoters in Sri Lanka
Comparison of Integrated Pest Management Strategies in Different Tea Growing Countries with Special Reference to Pesticide Residue Monitoring
(Uva Wellassa University of Sri Lanka, 2012) Hewanainbikanda, C.S.; Mohotti, K.M.; Gunathilaka, R. P. D.
Tea (Camellia sinensis(L)0.Kuiitze) is an intensively managed perennial monoculture crop cultivated on large and small scale plantations situated between altitudes 4l'N and 16'S. Tea plants are attacked by several pests and diseases and also invaded by numerous species of weeds, which compete with tea plants for moisture and nutrients. Hence to augment the productivity of tea and to protect the plaiits froi i pests and diseases, it is necessary to adopt plant protection measure using synthetic chemicals. Tea is the secondly most consumed beverage in the world. Tea is considered as a ‘health beverage’ due to its antioxidant properties and resultant beneficial effects on human health. Such beverage should be free from toxic elements such as pesticide residues and heavy metals. To obtain a clear idea about pesticide residues in tea, it is imponant to understand the situation about pests, pesticide usage and Integrated Pest management (IPM) strategies in leading tea growing countries. Also it has been recognized as important for all the stakeholders in the tea industry by Food and Agricultural Organization (FAO) /IntergovernmentaI Group on Tea (IGG).
Comparison of Two Species of Ascid Mites as a Food Source for Heoseiulus Bairiki: A Predatory Mite of Coconut Mite, Aceria guerreronis
(Uva Wellassa University of Sri Lanka, 2012) Kaushala, E.A.N.; Aratchige, N.S,; Wijayaratne, D. K. W.
Coconut mite, Acei’ia guerreronis Keifer (Acari: Erioph yidae), is a major pest of coconut fruits (Cocos nucifera L..) (Lawson—Balagbo et a!., 2008) causing 30-60% loss of production (Nair, 2002). Coconut mite is difficult to control due to its hidden habitat under the perianth and tall stature of the coconut free. Chemical control is impractical, uneconomical, and environmentally not sounds (Navia el at., 2012). Release of the predatory mite Neoseinlus barai‹i at 3-4 month intervals at 5000 mites per palm for at least a quarter of the plantation is recommended. For tft is, mass production of N. baraI‹i is necessary. Tyrophagiis pulrescenliae is used as the food source for N. baraki. A new Tyrophagiisp. which can be a host for N. baraki has also been observed, but the efficacy of this new species has not been evaluated. There Fore the objectives of this study were to compare the oviposition, developmental times, longevity and sex ratio of N.baraki on r. pulrcscenliac and new Tyropha$us sp. and to quantify the mass production of N.baraki on the two Tyrophagus sp.
Constraints for Promotion of Tea Tourism in Sri Lanka
(Uva Wellassa University of Sri Lanka, 2012) Koththagoda, K.C.; Gunathilakaand, R.P.D.; Rathnayaka, R.M.S.D.
Tea tourism is novel concept to the Sri Lanka, which is operating at infancy stage far below than it real capacity. Tea tourism is the most significant industrial diversification opportunity for this both product and service industries to insure the sustainable development of the Sri Lanka economy. But stakeholders, specially Regional Plantation Companies (RPCs) do not give much interest on this divestment strategy. Tea plantation sector in Sri Lanka at present struggles to earn profit and sustainability of the sector with managing high cost of production and other unique problems of the sector, while increasing land efficiency and labour productivity. Although industry has given attention for value addition to final product and marketing process, but it may not address the problem faced by tea plantation sector. Because the revenue from value additions generally accrue to the value adding party, is often a third party and it is not to the producer. Under this situation tea tourism is significant diversification option for plantation sector. This study has been conducted to identify the constraints behind tea tourism promotion in Sri Lanka. Primary and secondary data were collected from the relevant parties and 21 RPCs were taken as the sample. Data were analyzed by using Descriptive statistic model, Results were emphasized poor financial position, lack of product variation, lack of infrastructure facility and lack security and minimum standard to be provided in tourism as major constraints. Other than that inherent attitudinal condition has been severely affected to undermine this diversification strategy. The outcome of this investigation clearly has been stressed out the necessity of government intervention and national policy for such type of industrial diversification to make sure the industrial sustainability and ultimately to achieve the sustainable development in Sri Lanka through economic growth.
Consumer Evaluation of Brand Extension with Reference on CIC Brand
(Uva Wellassa University of Sri Lanka, 2012) Wanigasekara, P.G.G.; Mahindarathne, M.G.P.P.; Weyhenage, S. P.
The ever changing market characteristics give huge impact on corporate decisions. Hence the companies constantly develop new marketing strategies to stay ahead in the market and reap more benefits for their stakeholders. In fact introduction of new product is necessary for any companies to stay ahead with competition. As a solu1ion companies adopt brand extension strategy for increasing sales of the new product lines. Brand extension is a strategy adopt by companies having strong and establish brand names, as a means to enter in new product categories or classes (Aaker and Keller, I 992).Brand extension is one of the attractive growth strategies and it is low cost, low risk way to penetrate different target segments by utilizing establishes brands. Brand extension is widely used because of the fact that strongly positioned brand could build and communicate brand value successfully. Then the customers are motivated to do trail purchasing and averse the risk of new product. Brand extension strategy needs a careful analysis of the market before adopting, because it has both positive and negative consequences. Brand extension strategies tasted success in the past, still brand extension success is uncertain. Literature, showed a wider variety of determinants for consumer evaluation of brand extension. But there is no any empirical evidence under Sri Lankan context. Therefore this study was conducted to analyze how consumers evaluate brand extension in the Sri Lankan context. The specific objectives of this study are identifying the factors influence in consumer evaluation of brand extension and find out the association between above Factors with overall brand extension respectively. General objective is identifying the possible brand extensions for future success by incorporating CIC brand name.
Control Measures for Leaf Fall Disease in Clove (Syzygium aromaticum L.)in Southern Sri Lanka
(Uva Wellassa University of Sri Lanka, 2012) Senaratne, G.; Jayasinghe, G.G.; Chandrasena, G.
Among several diseases recorded in Clove plantations, leaf fall disease is severe. Although the disease has been recorded in n\ id country region (Jayasinghe and Liyanage, 1982) in earlier and currently, it is distributed throughout the southern region. Identical purplish brown color spots are noticed when fungus is infected and gradually tune them into brown color. Severely infected leaves are withered, dropped and dried up and cause sudden death of plants finally. There are no proper cultural or agronomic practices to manage the situation. Therefore, this study was carried out to confirm the causal agent of disease and find out most suitable fungicide and application method to manage the disease in field plants.

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