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Efficacy of pure carbon dioxide gas against some insect species of stored products at different temperatures [electronic resource].

By:

Aamir, M. M. I

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Language: English Summary language: Arabic Description: p.283-296Other title:

فعالية غاز ثانى أكسيد الكربون على بعض حشرات المخازن على درجات حرارة مختلفة [Added title page title]

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Zagazig journal of agricultural research, 2006 v. 33 (2) [electronic resource].

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In: Zagazig Journal of Agricultural Research 2006.v.33(2)Summary: Laboratory studies were carried out to investigate the efficacy of the pure gas carbon dioxide against the developmental stages and adults of four insect species of stored products at four degrees of temperature viz. 20, 25, 30 and 35°C. The results showed that carbon dioxide was more effective at the highest temperature than at the lowest one. The Angoumois grain moth, Sitotroga cerealella (Olivier) was the most sensitive species compared with the other three species,( the cowpea beetle, Callosobruchus maculatus (F), the lesser grain borer, Rhizopertha dominica (F.) and the red flour beetle, Tribolium .castaneum (Herbst».The adult stage of the tested species proved to be the most susceptible stage to pure carbon dioxide gas at the various temperatures. Time of exposure was an important factor from the mortality point of view, the mortality percentages increased as the exposure period increased at various temperatures.

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Laboratory studies were carried out to investigate the efficacy of the pure gas carbon dioxide against the developmental stages and adults of four insect species of stored products at four degrees of temperature viz. 20, 25, 30 and 35°C. The results showed that carbon dioxide was more effective at the highest temperature than at the lowest one. The Angoumois grain moth, Sitotroga cerealella (Olivier) was the most sensitive species compared with the other three species,( the cowpea beetle, Callosobruchus maculatus (F), the lesser grain borer, Rhizopertha dominica (F.) and the red flour beetle, Tribolium .castaneum (Herbst».The adult stage of the tested species proved to be the most susceptible stage to pure carbon dioxide gas at the various temperatures. Time of exposure was an important factor from the mortality point of view, the mortality percentages increased as the exposure period increased at various temperatures.

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