Regulated non-quarantine pest Project

An EU funded project for the benefit of the whole EPPO region

NAME OF THE ORGANISM: Phytophthora erythroseptica (PHYTER)


Name as submitted in the project specification (if different to the preferred name):

Pest category:

1- Identity of the pest/Level of taxonomic listing:

Is the organism clearly a single taxonomic entity and can it be adequately distinguished from other entities of the same rank?

Is the pest defined at the species level or lower?:

Can listing of the pest at a taxonomic level higher than species be supported by scientific reasons or can species be identified within the taxonomic rank which are the (main) pests of concern?
  • Not relevant: Seed potato sector, Vegetable propagating and planting material (other than seeds) sector
Is it justified that the pest is listed at a taxonomic rank below species level?
Not relevant

  • Not evaluated: Seed potato sector, Vegetable propagating and planting material (other than seeds) sector
2 – Status in the EU:
Is this pest already a quarantine pest for the whole EU?

Presence in the EU:

List of countries (EPPO Global Database):
Belgium (1990); Bulgaria (1990); France (1993); Greece (1990); Ireland (1993); Italy (1990); Netherlands (1993); Poland (1990); United Kingdom (1993); United Kingdom/England (1994); United Kingdom/Northern Ireland (1994)


Justification (if necessary):
Data of the presence of this pest on the EU territory are available in EPPO Global Database (

HOST PLANT N°1: Cichorium intybus (CICIN) for the Vegetable propagating and planting material (other than seeds) sector.

Not evaluated: This pest/host combination was not identified by any EU MS in the RNQP Questionnaire as requiring a revision of current thresholds and or a revision of current management measures. This pest/host combination was not identified by the experts of the vegetable SEWG as being a candidate for the RNQP Status with specific tolerance levels and/or specific risk management measures. Experts recommended that this pest/host combination should be covered in the future by the 'substantially free from' requirement that will remain in the Vegetable propagating and planting (excluding seeds) EU Marketing Directives.

HOST PLANT N°2: Solanum tuberosum (SOLTU) for the Seed potato sector.

Origin of the listing:
5 - Seed potato sector: Council Directive 2002/56/EC

Plants for planting:
Plants intended for planting, other than [true] seeds

3 - Is the pest already listed in a PM4 standard on the concerned host plant?

Justification (if necessary):
Pest already listed in the EPPO PM 4 Standard under the dry/wet rot symptoms. Experts indicated that there are other species of Phytophthora for which third countries require the absence (example: Phytophthora cryptogea or P. megasperma) but these pests are very rare on potato compare to P. infestans or P. erythroseptica. Experts concluded that there was a lack of studies to conclude that some other species may cause important economic impacts on potatoes. Experts recommended only listing P. erythroseptica and P. infestans under the wet rot symptoms.

Recommended for listing as an RNQP, based on EPPO PM 4 Standard.

8 - Tolerance level:

Is there a need to change the Tolerance level:

Proposed Tolerance levels:

9 - Risk management measures:

Is there a need to change the Risk management measure:

Proposed Risk management measure: