Impact of short and long term heat induced treatment on Blow fly egg tolerance (Lucilia cuprina, Diptera: Calliphoridae) for an effective control/suppress Program

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Impact of short and long term heat induced treatment on Blow fly egg tolerance (Lucilia cuprina, Diptera: Calliphoridae) for an effective control/suppress Program

Muhsina Yasmin, Mahmudul Hossain, Md. Shahinur Islam, A.T.M. Fayezul Islam
Int. J. Biosci.16( 2), 137-142, February 2020.
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The farmers of fish drying areas of Bangladesh are facing a great tricky in controlling the pests of sun drying fishes and most of these invasions occurred by blow fly (Lucilia cuprina). The present trial is to investigate the blow fly egg tolerance towards a heat induced treatment with a view to develop an effective blow fly control/ suppress program. In this experiment, both a short and long term heat treatment were persuaded through a water bath system on 1.5 hour old blow fly eggs at 35˚C and 37.5 ˚C of temperature respectively. A control batch was also placed at a room temperature (28± 2 ˚C). In case of 5 minutes heat induction, the egg hatching was significantly (p <0.01) higher than that of the 45 minutes of heat exposure. Only 3.6 ± 0.74 % of egg was hatched at 37.5 ˚C through a 4 hour long heat treatment. The observation disclosed that the longer the heat exposure the shorter the percentage of egg hatching. Again, it was revealed that 35 ˚C of temperature is flawless for a higher number of eggs hatching by a short term heat exposure and 37.5 ˚C is acknowledged as the best temperature regime for highest egg mortality.


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