NL experience on Comparative Assessment

Ivonne Elberse, Workshop CA, Lisbon, 2018

Content• NL experience• NL procedure• Questions

NL experience

Limited experience• 9 CA’s• 1 CA in 2015, 1 in 2017 and 7 in

2018

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NL procedure

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Ctgb: initiation CA

NPPO: CA Agronomic considerations

SuitableAlternative(s)available

Substitution not possible

Ctgb: Comparative safety

Substitution possible

No suitablealternativesavailable

Agronomic considerations

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List (non) chemical alternatives

Effectivenessalternatives / limitsof use

Resistance risk Consequences Minor uses

Stop CA

Alternative available regardingEFF and RES and MU

Substitution possible

Stop CA Stop CA

Assumptions (1)

• No agricultural system approach• Authorised products are effective• Other CfS is no alternative• Alternative has same mode of

application• Resistance management: no change

in # MoA’s or at least 5 MoA’s

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Example

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Assumptions (2)

• Non-chemical alternatives accordingto Defra document

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Example

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Questions

• When is a non chemical methodconsidered as an alternative?

• Do other MS use information fromgrowers/advisors/expert judgement?

• Do other MS assess effectiveness of alternatives?

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Thank you for yourattention