Where the risk of resistance against a plant protection measure is known and where the level of pests, diseases or weeds requires repeated application of plant protection products in the crops, IP guidelines and IRAC / HRAC/ FRAC** have to provide clear recommendations or mandatory requests for an anti-resistance strategy to maintain the effectiveness of the products.
**:
- IRAC = Insecticide resistance action committee
- HRAC = Herbicide resistance action committee
- FRAC = fungicide resistance action committee