Based on the general criteria, the following categorization of certain pesticides and pesticide groups is established and may require updating with the development of new products.
- Plant growth regulators.
- Organochlorine pesticides.
- Persistent (DT50 > three months), toxic or ground-water polluting residual herbicides including triazines.
- Diquat, Paraquat.
- Persistent or phytoseiid mite toxic OP insecticides.
- Pyrethroid insecticides and pyrethroid acaricides. (1)
Permitted with Restrictions
- Non-persistent (DT50 < three months), non-toxic, non-ground water polluting residual herbicides (maximum of one dose-equivalent/annum).
- Benzimidazole fungicides (maximum of one application/year, except on raspberry a maximum of two applications per annum as directed sprays to control cane blight only).
- Other fungicide groups with risk of resistance development (including EBIs, dicarboximides and QOLs) maximum of three applications per group/year alternating different active ingredients.
- Acaricides for control of spider mite (maximum of 1 application per pesticide resistance group /year).
- OP insecticides of short persistence and low toxicity to phytoseiid predatory mites (maximum of 2 applications/year).
*The list of “Not permitted” and “permitted with restrictions” still contains groups of active ingredients no longer allowed in European union; if these groups are still allowed outside Europe than these rules must be followed.
Note (1) as a short-term measure, whilst research is undertaken to identify more selective control methods synthetic pyrethroid insecticides may be used in the following circumstances:
- Maximum of one application/year in emergencies, if no alternatives are available. In case of demonstrated damages provoked by Drosophila suzukii, and under same conditions as above, a maximum of two applications/year is permitted as a specific short-term measure.
- IP programmes, which permit the use of pyrethroids, must have an active research effort to identify alternatives that are more favourable.
Additional requirements for integrated plant protection on strawberry
- Naturally occurring phytoseiid, predatory mites, reduce populations of spider mites, tarsonemid mites and thrips and must be conserved. Use of pesticides harmful to them must be avoided.
- Where application of a harmful pesticide cannot be avoided, effects may be alleviated by downward-directed spraying to reduce deposits on the undersides of leaves where the predatory mites occur mainly and/or making additional releases after the application has been deemed non-toxic.
- The predatory mite, Phytoseiulus persimilis, or another appropriate species must be introduced for biological control of two-spotted spider mite on protected crops (in tunnels etc.).
Additional requirements for integrated plant protection on cane fruits
- Predatory mites must be conserved in field crops and Phytoseiulus persimilis, or another suitable species, used for biological control in protected crops.
- Byturus tomentosus must be monitored regularly by using white sticky traps or with non-sticky bucket traps enhanced with attractant lures including eventual use for mass trapping.
- The raspberry clearwing moth, Pennisetia hylaeiformis and in blackberry, Synanthedon vespiformis must be monitored with pheromone traps. Infested shoots must be pruned and removed from the plantation.
Additional requirements for integrated plant protection of bush fruits
- The currant clearwing moth, Synanthedon tipuliformis, must be monitored with pheromone traps. Infested shoots must be pruned and removed from the plantation.
- Blackcurrant crops must be closely inspected for blackcurrant gall mite galls during the dormant period when they are easily visible and all infested plant material must be removed from the plantation and destroyed. Crops must also be inspected for symptoms of reversion disease immediately before flowering and all infected bushes must be grubbed and destroyed.