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Prof. Gad Hamada Hassan Rady :: Publications:

Title:
Evaluation of the toxicological effect of bean flour on the mortality and population dynamic of two storage mites
Authors: Nevin Ahmed; Gad Rady; Hazem Abdelnabby a Gada Mohamed; Shao-hua Shu b
Year: 2013
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
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Abstract:

A laboratory study was carried out to demonstrate the efficiency of bean flour in the control of two storage mites: Tyrophagus putrescentiae (Schrank, 1781) and Aleuroglyphus ovatus (Troupeau, 1878) fed on two dried Chinese herbs: coix seed (Coix lachtymal-jobi) and Chinese hawthorn (Crataegus pinnatifida). Five concentrations of bean flour (0, 0.01, 0.1, 1 and 10 %) were used at 25 °C and 85+5% relative humidity (RH) under darkness. The results indicated that the controlling effect of bean flour on T. putrescentiae was higher than that on A. ovatus and become more noticed when its concentration increased. The low dose of bean flour (0.01 %) generally had no toxic effect on T. putrescentiae and A. ovatus when they fed on C. lachrymal-job and C, pinnatijida. Mortalities of T putrescentiae on C. pinnatijىda varied from 15% to 40% and from 26% to 61% on C. lachiymal-job due to the use of 0.1% of bean flour. Moreover, in the case of A. ovatus, the mortalities ranged from 6% to 26% and from 15% to 51% on C. pinnatijىda and C. lachrymal-job, respectively. After 28 days, the concentration of 1% bean flour caused 81% and 52% mortalities of T putrescentiae and A. ovatus on C.

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