npqs@doa.gov.lk

+94 112 252 028

Weed Science Division

Weed Science Division
The Weed Science Division of the National Plant Quarantine Service was established in 1999 as one of the major technical divisions in the institute.
The main duty and function of this division is to carryout official phytosanitary certification activities related to weed (including their seeds) and soil contaminations on the export ready and imported commodities.
In Addition the division perform,
  • Predicting the potential invasiveness of a plant requested to be imported
  • Compiling and upgrading Quarantine weed lists
  • Surveys and surveillance on weeds that have been introduced unintentionally or illegally to understand the biology, ecology, reporting their status and developing management options for those weeds
  • Pre import risk analysis, development of import phytosanitary conditions and perform post entry quarantine studies on plants that are regulated to import (due to their potential invasiveness) when they imported for scientific studies
  • Development of identification keys for the quarantine weeds and their seeds, maintaining reference collections and research on pre, intermediate and post entry quarantine management of weeds
  • Taxonomic identification of plants imported to Sri Lanka
 
The tests performed for the imported and export ready commodities
 

 

Commodity

Quarantine tests

When importing

1

Planting material (seeds)

Weed seed test, soil test

2

Planting material (seedlings)

Weed seed test, soil test

3

Planting material (rooted cuttings, unrooted cuttings)

Weed seed test, soil test

4

Human food and animal feed

Weed seed test

5

Soil imported for special reasons

Weed seed viability test

6

Growing media

Weed seed viability test, soil test

 

When Exporting

1

Coir products

Grow-out  test, soil test

2

Human food and animal feed

Weed seed test

3

Planting material (rooted cuttings, unrooted cuttings)

Weed seed test, soil test

 


Grow out test – test is performed for growing media (coir, peat moss, mushroom growing media, etc.) and sand imported under special conditions.
      - The  test conditions are universally set
      - Time taken for the test will be 28 days (minimum)



Detection and diagnosis of weed contaminats in consignments
 
Research
 







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