Biology Reference
In-Depth Information
Appendix 2
Decision-Support Scheme For Quarantine Pests.
Stage 2: Pest Risk Assessment
Section A: Pest categorization
no
Identity: single taxonomic entity or produce
consistent symptoms and is transmissible
STOP
yes
no
STOP
Known pest or likely to become a pest?
yes
Occurs in PRA area?
yes
yes
no
STOP
Widely distributed?
no
no
Does a host or suitable habitat
occur in PRA area ?
STOP
yes
no
If a vector is the only means of spread
is it present in the PRA area?
STOP
yes
no
Ecoclimatic conditions suitable?
(consider also protected conditions)
STOP
yes
Area
suitable for
establishment
no
Will have economic
Importance ?
STOP
yes
could be a
risk to the
PRA area
Section B: Assessment of the probability of introduction and spread and of potential economic conequences
Evaluate
probability of
entry
Evaluate
probability of
establishment
Evaluate
probability of
spread
PROBABILITY OF INTRODUCTION
ECONOMIC IMPACT
Go to stage 3
Pest Risk
Management
Pest presents
a risk ?
yes
Assess potential
economic consequences
(including environmental
impact) in the PRA area
STOP
