Selection for insecticide resistance in the Australian sheep blowfly, Lucilia cuprina

Egg implant studies on sheep demonstrate that the relative fitness of resistance genotypes of the sheep blowfly, Lucilia cuprina, changes over time for the 2 insecticides dieldrin and diazinon. The results suggest that selection may occur following exposure of larvae to sub-lethal concentrations and help to explain the relative rates of the development of resistance to dieldrin and diazinon by L.cuprina.