Flight Distances of Drosophila Determined with Radioactive Phosphorus

Abstract
The flight range of Drosophila spp. has become increasingly important to the vineyardist and fig grower of the San Joaquin Valley of California due to the increased intermixing of various other fruit and vegetable crops and their attendant cull disposal problem. Drosophila were tagged with p32 on fermenting fruit paste and released in the field. Several types of bait traps were used to recapture the insects. D. melanogaster Meig. was trapped at a distance of at least 4.4 miles upwind from the release point after 24 hours.

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