REDUCTION IN OFFSPRING SURVIVAL OF LUCILIA CUPRINA (WIEDEMANN) FOLLOWING CONSUMPTION OF INSECT DEVELOPMENT INHIBITORS

The insect development inhibitors BAY SIR 8514 (BS), diflubenzuron (DFB) and Cyromazine (CGA-72662) (CGA) were examined for their ability to reduce egg laying and survival from egg to pupa, when eaten by susceptible and diazinon-resistant adult female Lucilia cuprina (Wiedemann). BS and DFB reduced the number of eggs developing to-pupae in each strain, the diazinon-resistant R-strain being affected by about half the dose needed for the susceptible flies, but the Q-strain demonstrating some cross-resistance. BS was 6–8 times more effective than DFB. CGA did not influence the development of offspring in a dose-dependent manner.

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