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Impact of Controlled Atmosphere of Different Three Gases For Controlling
The Stored Dates Mite, Tyrophagus putrescentiae (Schrank) (Acari: Acaridida)
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Abstract: This experiment aimed to evaluate controlled atmosphere (CA) containing various gases,
(Argone, Nitrogen and Carbon dioxide) separately as alternative method to control adult mite females of date
fruits mite Tyrophagus putrescentiae (Schrank) and its effect on the main mite metabolites and the reaction of
defensive enzymes. The three gases, Argone (50,75 &100%), Nitrogen 100% and Carbon dioxide 100% had been
tested against T. putrescentiae adult mite females at various exposure durations, which were ranged from 22.5
min. to 168 hrs. Mortality rate increased by increasing of exposure period and or concentration. At 100 %
concentration, data revealed that the 100% mortality obtained after 30 hrs. for Argone, after 42 hrs. for Nitrogen
and after 168hrs. for Carbon Dioxide. It is clear that the Argone is most efficient treatment and the Carbon
Dioxide is the least efficient while the nitrogen has intermediate effect on the adult mite females. Exposure of
the mite to LT 50 of Argone, Nitrogen and Carbon dioxide led the main mite metabolites total proteins, total
carbohydrates and total lipids to be significantly decreased and activated some of defensive enzymes such as
esterases and phenoloxidases.
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| Publication year |
2019
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| Author(s) from ARC |
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| Publication Type |
Journal
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