Effect of some Wheat variates and Situation on Development average of Tribolium castaneum (Herbst.) and Troguderma granarium (Everts.) and Feed preference under laboratory conditions.

N.R. ALRawi, Nawfal; Daoud, Sh.; Awwad,; Mohammad, M.; Borhan,

	Effect of some Wheat variates and Situation on Development average of Tribolium castaneum (Herbst.) and Troguderma granarium (Everts.) and Feed preference under laboratory conditions.
Tikrit Journal of Pure Science
Article 1, Volume 18, Issue 4, 2013, Pages 1-8
Authors
Nawfal N.R. ALRawi; Sh. Daoud; ; M. Mohammad;
Abstract
It has been studied the effect of three variaties of local wheat in Iraq which are : Sham6, Abu-Greb3 and Ibaa 99 in its three states ( whole, crashed, flour ) on the feed preference and the development average of Tribolium castanium (Herbst) and Troguderma granarium (Everts.) under laboratory conditions. The result showed that there are significant differences in the larval, pupal development stages, preoviposition and eggs incubation period, the results showed that during the development stage concerning the T. castaneum and the development was absent in the case of whole, the results have also showed the present of significant differences concerning the general average of development period for the insect, where the T. castaneum showed the highest development period on the crashed grains which reached 23.1 days, and in the flour grains it reached 20.3 days whereas the highest development period for the T.granarium on whole grains was 32.76 days followed by the flour in 29.73 days than crashed grain 28.20 days. Also found the present of significant differences in the preference of the larvae of bath insects for the varieties and cases of grains in the number of attracted larvae to each state, T. castaneum preferred the flour and crashed Ibaa99 with the average of 10.3% and 10.0% larvae respectively, while lower number of larvae in case of the whole grain state of Sham6 with the average of 2.6% larvae, the T.granarium preferred the crashed and flour Ibaa99 with the average of 8.3% and 8.0% larvae respectively, while low in the whole grain state of Abu-Greb3 with the average of 2.6% larvae.

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