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International Journal Of Horticulture, Agriculture And Food Science(IJHAF)

Laboratory Studies on the Effect of Nitrogen gas (N2) on Mortalities of the Cowpea Weevil, Callosobruchusmaculatus (F.)(Coleoptera : Bruchidae ) in Iraq

Hussam A. Mohammed , Maha T. AL-Ani


International Journal of Horticulture, Agriculture and Food science(IJHAF), Vol-1, Issue-3, September - October 2017, Pages 48-51, 10.22161/ijhaf.1.3.9

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A labrotary studies were conducted at the college of Agriculture , University of Baghdad to investigate the effect of nitrogen gas (N2) at low pressure of 160 and 180 mm mercury and a nitrogen gas (98.5%)on mortality rates of differentdevelopmental stages of the cowpea weevil ,Callosobruchus maculatus (F.) from egg to adult , with different exposure periods of 1,5,6 days. Results indicated that egg , larval, pupal and adult mortalities increasrd with increasing exposure peroids, the complete mortality rates for all stages were achived after 5-6 days. However, these treatment have no significant effect on seed germination , The use of these information in control programs for this pest , also discussed.

cowpea weevil, callosobruchusmaculatus (F.) , Physical control , Nitrogen gas , Low pressure , Iraq .

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