The Influence of ShortWavelength Laser on the Pupae Development of the OldWorld Screw-Worm Fly (OWSWF) Chrysomya bezziana Villeneuve (Diptera: Calliphoridae)


Abstract: The biological effects of pulsed N2-laser on the old world screw-worm fly, Chrysomyabezziana Villeneuve in the pupal stage were investigated. Different laser parameters were involved inthis work. The old pupae of 1, 2, 3, 4 and 5 days were exposed to laser radiation during 10, 30 and 60second with repetition rate 10, 20 and 30 pulse/second. The percent of normal adults emergence(female and male) was investigated. The results showed that the adults emergence was highlydecreased as the repetition rate and exposure time increased when the pupae irradiated for 1, 2 and 3days old as compared with 4 and 5 days. The results also indicated that the pupal period wassignificantly increased of irradiated pupae for 1, 2, 3 and 4 days old, while the 5 days old pupa wasdecreased.