Quarantine cold treatment commenced when
pulp temperatures near the seed reached B2.2,
B1.67, or B1.1°C, usually about 1–2 days after
exposure to cold storage temperatures. Pulp temperatures
of the ‘warmest’ fruit determined the
exposure period (days) of the quarantine treatment.
According to the APHIS schedule, pulp
temperatures of B1.1, B1.67 or B2.2°C require
exposure of 12, 14 or 16 days, respectively.