8. Fumigation (with methyl bromide or
phosphine) or irradiation (at less than 1
kGY) for insect control to satisfy
quarantine requirements of the
importing country.
9. Ethylene treatment to de-greening
citrus fruits (1-5 ppm ethylene in air),
and for ripening climacteric fruits, such
as avocado, banana, mango, and tomato
(100-150 ppm ethylene in air).