Submitted to: Entomology International Congress Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 9/2/1996
Publication Date: N/A
Technical Abstract: Several events are increasing the need for new types of quarantine treatments. Ethylene dibromide was lost as a fumigant a decade ago, and methyl bromide may be lost by the end of this century or shortly thereafter. More commodities host to more pests are being transported to more countries than ever before. Improvements are sought in some treatments which have been developed to replace fumigants. The cold treatment is lengthy (two weeks or more) and causes damage to some commodities on which it is currently being used. Hot water immersion of mangos often damages mangos. New methods of quarantine treatment are being studied. Fruit coatings and waxes have been shown to kill surface and interior quarantine pests. Coating combines well with other fruit fly quarantine treatments, such as heat and insecticide dip. Coatings by themselves may yield considerable levels of fruit fly mortality, thus, being useful to the systems approach. Ohmic heating shows promise as a quarantine treatment. An electrical current is passed through fruit and resistance causes the fruit to heat. Fruit can be heated to temperatures sufficient to kill fruit fly immatures fairly uniformly in a matter of a few minutes. Other treatments, such as microwave heating and high pressure, are being examined in new ways which may show promise as quarantine treatments in the third millennium.