Comparison between using phosphine and/or carbon dioxide for controlling Plodia interpunctella and Oryzaephilus surinamensis in stored date fruits
Abstract: This experiment aimed to evaluate the use of CO2 and phosphine gas, each alone and mixed together,
in controlling Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) and Oryzaephilus surinamensis
(Linnaeus) (Coleoptera: Silvanidae) which infesting stored date fruits. The study also aimed to evaluate
the effect of using these gases on the chemical properties and quality of the treated date fruits. Three
concentrations of CO2 (50, 75 and 100%) were tested to control the two insects for different exposure
times ranged from 1 to 36 hrs. The obtained results showed that the corrected mortality percentage of
the two tested insects increased by increasing the exposure time in each of the three CO2 concentrations,
and or increasing of the concentration. The corrected mortality percentages of P. interpunctella and O.
surinamensis reached 100% after exposure to CO2 (50, 75 &100%) for exposure periods (36, 24 &16
hrs.) respectively. For phosphine gas five concentrations were tested (0.073, 0.146, 0.292, 0.585 and
1.170 g.) of magnesium phosphide
Publication year 2020
Organization Name
Author(s) from ARC
Publication Type Journal
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