Anastrepha suspensa (Loew) flies, laboratory reared from bagasse diet and then sterilized with 10 kr of gamma radiation 2 days before eclosion, and unirradiated flies were compared to native flies from guava with a device which measured propensity for flight to an overhead light source. Native males were 27% more responsive (significantly less sedentary) than unirradiated males and 43% more responsive than irradiated males. Unirradiated males were 22% more responsive than irradiated males. Native females were 20% more responsive (significantly less sedentary) than unirradiated females and 29% more responsive than irradiated females. Unirradiated females were 11% more responsive than irradiated females. Since unirradiated laboratory reared flies had a lower flight propensity than unirradiated flies, irradiation could reduce the chances for survival of flies during stressful situations, such as in field release programs.
Document Type: Research Article
Publication date: October 1, 1980
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