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The Effect of Gamma Irradiation on the Adult Stage of Confused Flour Beetle, Tribolium confusum Duval.

Author(s): S. Khaghani | R.V. Shoushtari | H.R. Zolfagharieh | S. Khaghani | F. Rahim

Journal: International Journal of Botany
ISSN 1811-9700

Volume: 6;
Issue: 2;
Start page: 157;
Date: 2010;
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Keywords: pests | gamma irradiation | LD50 | Tribolium confusum | Stored product

This study aimed to investigate the non-chemical performance against the Tribolium confosum, the influence of gamma irradiation in various doses on the young and aged adult. The insects were reared in a laboratory condition (27±1°C, RH; 65±10% and L: D, 8:16) and after gamma irradiation, they were kept in the same mentioned condition. Furthermore, the gamma ray effect on baking flour was studied before and after irradiation. Due to the primary tests, the extent of experienced does for the growth period of young-adult and mature-adult insects were determined. The young-adult and aged-adult insects were exposed to the selected doses and their mortality rate were registered after 24 h. The analysis showed that the killer does for 50% of their population in the young and aged adult was 1223.91 and 2296.15 Gy in 3 days, respectively. This study supports the assertion that relatively low doses of irradiation can serve as a disinfestations treatment. Product damage could be significantly reduced at a minimum irradiation dose while in high dose the mortality should take into the account.
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