Evaluate of efficiency of some biological and chemical Treatments in control on the larvae stages of Khapra beetle Trogoderma granarium Evrts

	Evaluate of efficiency of some biological and chemical Treatments in control on the larvae stages of Khapra beetle Trogoderma granarium Evrts
Magazine of Al-Kufa University for Biology
Article 1, Volume 1, Issue 1, 2009, Pages 30-37
Abstract
This study aims to possibility of create means to protect the grains stores from infestation with Khapra beetle Trogoderma granarium through test for the efficiency of some biological treatments ( inoculum's of fungus Beauveria bassiana and inoculum's of bacterium Bacillus thuringiensis ) and chemical treatments ( Metacol chemicide , Gentabride chemicide and Methan chemicide ). The study results showed the inoculum's of fungus B. bassiana was more effective than the inoculum's of bacterium B. thuringiensis from where mortality rate . Its caused 34.08 % compare with 27.98 % in the inoculum's of bacterium B. thuringiensis after 5 days of the treatment. As well as the study revealed the Metacol chemicide is superiority on Gentabride and Methan .which caused mortality rate reached to 34.34 % , compare with ( 25.51 and 32.63 )% in two chemicides (Gentabride and Methan ) respectively. The result of laboratory experiments showed the biological treatment concentration 10 ml L , caused the best mortality rate on the larvae stages of Khapra beetle T. granarium was 47.89% compare with 1.72 % in control treatment.. as well as the another concentrations showed good ability on the average of mortalities of the Khapra beetle Trogoderma granarium . The larvae stages of Khapra beetle revealed different sensitive for biological and chemical treatments , and the fifth instar larvae showed a little mortality rate reached to 22 % for biological treatments and 4.26 % for chemical treatments .

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