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Plant Health Laboratory (PHL)


Welcome to the Plant Health Laboratory Web Page.  The PHL is Ireland's national plant health testing laboratory. The PHL was formally established in June 2007 and is mainly focused on fungal diseases of horticulture and forestry.  Ireland, because of its relative geographical isolation is free of many of the diseases, which occur in other jurisdictions.  The PHL aims, in conjunction with the plant health inspection service, to help Ireland to maintain this status by providing a rapid and efficient diagnostic service for diseases which may be introduced into this country through trade or other means.

Services provided

The Laboratory conducts a range of plant health tests on samples submitted from various Divisions within DAFF and private individuals.  Among the services provided are:

Plant Health Testing

The PHL tests for a range of mycological organisms, including:

  • RhododendronPhytophthora ramorum & Phytophthora kernoviae, which cause sudden oak death (SOD)
  • Ciborinia camelliae (camellia flower blight) on camellia species
  • Colletotrichum acutatum affecting strawberry
  • Phytophthora fragariae var. fragariae affecting strawberry
  • Phytophthora cactorum affecting strawberry
  • Guignardia citricarpa (citrus black spot)
  • Monilinia fructicola affecting stone fruit
  • Cylindrocladium buxicola (box blight)
  • Potato mycological diseases

Beet necrotic yellow vein virus (BNYVV)
Pepino Mosaic Virus (PepMV)

Miscellaneous samples

Public samples

The Laboratory may accept samples from members of the public.  Please note that fees may apply.  For instructions on how to sample and submit material for testing, please contact the Laboratory.

Useful links

Contact us

Plant Health Laboratory (PHL),
DAFM Laboratories,
Co. Kildare,
W23 X3PH.
  • Tel: +353 (0) 1 615 7518
  • Fax: +353 (0) 1 615 7196