Annex
Sulfur dioxide and carbon dioxide fumigation and cold treatment schedules
Effective 4 September 2016 to 15 December 2018SO2/CO2 fumigation plus cold treatment for the management of spotted wing drosophila (Drosophila suzukii) on table grapes from China
Preshipment fumigation with SO2/SO2 followed by cold treatment (undertaken either preshipment or in-transit).
The fumigation must be undertaken as per the following: 6 % carbon dioxide (CO2) and 1 % sulfur dioxide (SO2) by volume for 30 minutes, at a pulp temperature of 15.6 °C or higher at not more than 33 % chamber load.
The cold treatment may be performed preshipment or in-transit under one of the following schedules:
for 6 days or more at a pulp temperature of -0.5 °C ± 0.5 °C or lower.
Note: the cold treatment can only commence once the fruit pulp temperature reaches the set point for treatment of -0.5 °C or below. The pulp temperature must not exceed 0.0 °C for the duration of the treatment.
for 12 days or more at a pulp temperature of 0.9 °C ± 0.5 °C or lower.
Note: the cold treatment can only commence once the fruit pulp temperature reaches the set point for treatment of 0.9 °C or below. The pulp temperature must not exceed 1.4 °C for the duration of the treatment.