Studies on irradiation against mango seed weevil in Hawaii date back 40 years. Upadhya
and Brewbaker (1966) irradiated approximately 100 infested fruits at each of four doses
(300, 600, 900 and 1,200 Gy) and measured survival of adult weevils after 3 and 5 weeks.
About 70% of mangoes treated with an irradiation dose of 300 Gy produced live but moribund
adults, and no adults survived doses of >600 Gy after 5 weeks. The authors state that
the adult stage is the most tolerant to irradiation but provide no data.