236th E & E Forum - Corporate Sector (English)

The meeting will be held on 03rd August 2018 at the TRISL Auditorium, Talawakelle from 8.30am onwards....

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Visit of Russian Delegation

At Entomology Lab, TRISL
A four member delegation from

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TRI Scientists receive first place in National Awards for Excellence in Agricultural Research 2017


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Four TRI 5000 series tea cultivars officially released


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TRI Participates at the CRT Trade Fair & Exhibition


The CRT exhibition was held at the BMICH during August 11-13, 2017...

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FAO-IGG Inter-sessional Meeting

The FAO-IGG inter-sessional meeting was held during August 12-13, 2017 at the Cinnamon Grand Colombo Hotel with the participation of a large number of foreign delegates representing tea growing and consuming countries.
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Celebrate 150 years of Ceylon Tea – Tea Party

World’s ever longest Tea Party organized by Sri Lanka held on 06 July 2017. While many countries from east to west across the world celebrated at 5.00 pm Sri Lanka time in every time zone and the local event was at Galle Face Hotel, Colombo. This celebration was organized b...

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National Environmental Week - 2017



Inauguration Ceremony of National

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Visit of Honorable Vice Minister of Agriculture of China


Honorable Vice Minister of Agriculture of China Tea Research Institute of Sri Lanka on 04 May 2017....

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TRI participates in the national exhibition at the BMICH

The Tea Research Institute participated in the national exhibition........

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Visit of His Excellency President Maithripala Sirisena


His Excellency President Maithripala
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Year 2017: the year of adoption of integrated measures ..........



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First working day celebration of year 2017

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High quality St. Coombs tea

It is time to order the best tea you have ever tasted.
High grown factory fresh unblended St. Coombs tea is available at the St. Coombs Tea Centre....

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St Coombs achieved all time record price

St Coombs achieved all time record price...........

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Climate Change

Report on climate changevulnerability and adaptation strategies for
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Tea Research outshines at the Sixth Symposium on Plantation Crop Research

The sixth Symposium on Plantation Crop Research was successfully held at the BMICH during November 3-4, 2016. The theme of the symposium was “Plantation Agriculture t...

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Report on climate change vulnerability and adaptation strategies for tea plantations released

A comprehensive report on the impacts of climate change, vulnerability and adaptation strategies for the tea sector in Sri Lanka .....

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Low Country Regional Centre & St. Joachim Tea Factory Celebrated 50 years of Services

The TRI Low country Regional Centre and St. Joachim factory celebrated their Golden Jubilee in 2014. Commemorating the Golden Jubilee, a series of events viz. an “Open Day” for stakeholders, felicitation of retired officers with long years of service and religious ...

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National project launched for popularizing the use of machines in tea smallholdings sector

Launching the national project for popularizing the use of machineries in tea smallholdings, the Minister of Plantation Industries, Hon. Mahinda Samarasinghe handed over 21 million Rupees worth of machines and equipment to 50 societies of tea smallholders and 25 bought leaf t...

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Corporate Plan 2013-17

The third revision of the Corporate Plan of the TRISL is now prepared. It embodies the vision of the management, a commitment of its senior managers by way of its mission and of all those involved in making realistic goals and objectives....

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TRI Recommendations

Circular No.TitleIssued In
LU 01Guidelines on Land Suitability Classification for TeaOctober 2002
LU 02Field Categorization in Tea LandsSeptember 2003
PN 01The Suitability of Tea Clones for the Different RegionsDecember 2002
PN 02Tea Nursery ManagementNovember 2009
SP 01Fertilizer  Recommendations for Nursery TeaJuly 2000
SP 02Fertilizer  Recommendations for Immature TeaJuly 2000
SP 03Fertilizer  Recommendations for Mature TeaJuly 2000
SP 04Fertilizer  Recommendations for Clonal Mother BushesJuly 2000
SP 05Fertilizer  Recommendations for Tea Seed BearersJuly 2000
SP 06Fertilizer Recommendations for Rehabilitation Grasses (Mana & Guatemala)July 2000
SP 07Soil AnalysisMay 2009
SP 08Analysis of Fertilizer SamplesMay 2009
SP 09Sampling for Foliar Analysis of TeaMay 2009
SP 10Fertilizer Recommendation for Mature Tea in Small Holdings (1.46MB)July 2016
PA 01Bringing Young Tea Into BearingFebruary 2001
PA 02Drought Mitigation in Tea PlantationsJanuary 2011
PA 03Infilling Vacancies in Tea FieldsSeptember 2003
SI 01Green Manure Crops in TeaSeptember 2001
SI 02Shade in TeaMarch 2003
SI 03Wind and Shelter Belts in TeaMarch 2003
HP 01Pruning of Tea (2.31MB)June 2013
HP 02Guidelines on PluckingMarch 2003
HP 03Cultivation of Tea Soils – ForkingSeptember 2003
HP 04Rejuvenation Pruning (1.63MB)June 2013
WM 01Integrated  Weed Management in Tea (1.60MB) 
WM 02Herbicide and Their use in Tea 
WM 03Safe and  Effective use  of Herbicides 
PM 01Sampling for Shot – Hole Borer Assessment 
PM 02Management of Shot – Hole Borer 
PM 03Live-Wood Termites of Low Grown Tea and Their Management 
PM 04Protection of Young Tea from Nematodes (724KB) 
PM 05Sampling for Nematode Analysis (1.25MB) 
PM 06Mite Control 
PM 07White Grubs on Tea Lands and Their Control 
PM 08Contamination of Nursery Plants with Nematodes through Irrigation Water 
PM 09Live-Wood Termites of High Grown Tea and Their Management 
PM 10Management of Tea Tortrix (Homona coffearia Neitner) 
PM 11Fumigation of Nursery Soils for Nematode Eradication 
DM 01Protection of Tea from Blister Blight 
DM 02Protection of Tea from Red Root Disease 
DM 03Protection of Tea from Black Blight Disease in the Low Country 
DM 04Protection of Tea from Red Rust Disease in the Low Country 
DM 05Protection of Tea from Stem and Branch Canker Disease in the Low Country 
DM 06Protection of Tea from Collar and Brach Canker Disease in the Up Country 
PT 01Trough – Withering of TeaSeptember 2003
PT 03Manufacture of Tea by the CTC ProcessSeptember 2003
PT 05Calibration of Infra – Red  Moisture MeterSeptember 2003
PT 06Moisture Levels of Black TeaMarch 2004
PU 01Pesticide use in Tea Fields (574KB) 
PU 02Chemical Control of Diseases (1.67MB) 
PU 03Chemical Control of Weeds in Tea Lands (2.58MB) 
PU 04Chemical Control of Insect, Mite and Nematode Pests (1.69MB) 

 

 
 
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