Number | Risk mitigation measure | Effect on the pest | Evaluation and uncertainties |
---|---|---|---|
1 | Separation and physical protection of the commodity during production and before export | Yes |
Physical separation of the bonsai plants may have an effect on reducing risk of infestation with Dendrolimus species, especially in the production base.
Uncertainties:
|
2 | Growing medium and its treatment | No | Not applicable because the soaking is done when larvae are not present in the soil. |
3 | Treatment of seeds | No | Not applicable. |
4 | Insecticide and acaricide treatments | Yes |
Spray of contact and ingestion insecticides can be very effective in killing the larvae that are present on the plants.
Uncertainties:
|
5 | Fungicide treatments | No | Not applicable. |
6 | Nematicide treatments | No | Not applicable. |
7 | Herbicide treatments and weed management | No | Not applicable. |
8 | Official inspections during production | Yes |
The sampling and laboratory inspection of plant material may allow to identify plants infested by Dendrolimus species.
Uncertainties:
|
9 | Official inspections and treatments before export | Yes |
The sampling and laboratory inspection of plant material may allow to identify plants infested by Dendrolimus species. Export plants can be infested when they are moved from the bonsai production base to the storage and packaging place. The removal of the soil and soaking will kill the larvae hidden in the soil. Whereas some larvae can remain on the foliage.
Uncertainties:
|