Gamma irradiation, heat treatment or fumigation required.
Heat treatment mandatory for Myrtaceae species.
Methyl bromide fumigation rates for pine bark:
- 400gm/m3 for 24 hours at 20 degrees celsius or higher:
OR
-
500gm/m3 for 24 hours at 16-19 degrees celsius.
OR
- 600gm/m3 for 24 hours at 11-15 degrees celsius.
Ethylene oxide fumigation rates for pine bark:
(inder initial vacuum of 50kpa)
- 1500gm/m3 for 4 hours at 50 degrees celsius.
OR
-
1500gm/m3 for 24 hours at 21 degrees celsius.
Methyl bromide fumigation rates for bark other than pine bark and myrtaceae species:
-
48gm/m3 for 24 hours at temperatures greater than 20 degrees celsius.
OR
-
56gm/m3 for 24 hours at 16-20 degrees celsius;
OR
-
64gm/m3 for 24 hours at 11-15 degrees celsius.
OR
-
72gm/m3 for 24 hours at 6-10 degrees celsius.
Fumigation must be undertaken within 21 days prior to export.
Heat treatment:
- 70 degrees celsius minimum temperature in the centre of product for 4 hours minimum (all species other than Myrtaceae)
- 85 degrees celsius minimum temperature in the centre of product for 8 hours minimum (Myrtaceae species)
Heat treatment must be undertaken within 21 days prior to export.
Gamma Irradiation:
- 25 kGray
- Gamma irradiation must be undertaken within 21 days prior to export.
- After treatment, bark must be packaged and/or shipped in such a way as to prevent contamination by quarantine pests.
The exporter is to provide evidence attesting to the treatment and present it to the Authorised Officer at the time of inspection.
Details of treatment to be endorsed on the phytosanitary certificate in the treatment section.
