Abstract
The history of the development of generic phytosanitary irradiation (PI) treatments is discussed beginning with its initial proposal in 1986. Generic PI treatments in use today are 150Gy for all hosts of Tephritidae, 250Gy for all arthropods on mango and papaya shipped from Australia to New Zealand, 300Gy for all arthropods on mango shipped from Australia to Malaysia, 350Gy for all arthropods on lychee shipped from Australia to New Zealand and 400Gy for all hosts of insects other than pupae and adult Lepidoptera shipped to the United States. Efforts to develop additional generic PI treatments and reduce the dose for the 400Gy treatment are ongoing with a broad based 5-year, 12-nation cooperative research project coordinated by the joint Food and Agricultural Organization/International Atomic Energy Agency Program on Nuclear Techniques in Food and Agriculture. Key groups identified for further development of generic PI treatments are Lepidoptera (eggs and larvae), mealybugs and scale insects. A dose of 250Gy may suffice for these three groups plus others, such as thrips, weevils and whiteflies.
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