Abstract: The damage caused by rodent infestation for some field crops in different location i.e nearly buildings, nearby poultry farmes and nearby storehouse in addition to control in Kafr EI-Sheikh and Gharbia Governorates during the two successive seasons 2002 and 2003 were studied. Results of rice crop revealed that the damage percentages in immature and mature stages were [ (2.5 and 2.8 %) and (1.2 and 1.4 %)] and [ (2.6 and 2.8 %) and (1.8 and 2.2 %)], [ (2.6 and 3.6 % ) and (1.5 and 2 %)] and [(2.6and2.9%)and(2and2.2%)],[(2and1.2%)and(0.8and0.8%)]and[ (1.9and2.5%)and(1.4and1.8%)],[(1.8and2%)and(0.7and0.9%)]and[( 1.4 and 1.9 %) and ( 1.1 and 1.1 %) ] and [ ( 1 and 0.8 % ) and (0.5 and 0.5 %)] and [( 1.4 and 1.8 %) and (1 and 1.3 %)], with total mean average damage percentages of [ ( 2 and 2.3 %) and (0.9 and 1.1 % )] and [ ( 2 and 2.4 % and (1.5 and 1.7 % )], respectively, for immature and mature stages of rice crop.
For broad bean crop damage percentages were [ (1, 1.3, 0.8, 0.9 and 0.7 %) and ( 1.1, 1.5, 1, 1.2 and 0.8 %)] and [ ( 0.9, 1.3, 0.9, 0.9 and 0.6 %) and (1.1, 1.2, 1.1, 0.7 and 0.7 %)] with mean damage percentages of ( ( 1 and 1.1 % ) and ( 0.9 and 1 %)], respectively.
For wheat crop damage percentages were [( 0.6, 1, 0.8, 0.6 and 0.4 % ) and ( 0.9, 1.2, 1, 0.6 and 0.5 % )] and [ ( 0.9, 1.3, 0.6, 0.8 and 0.4 %) and ( 1.3, 1.6, 0.9, 0.7 and 0.5 % )] with mean average damage % of [ (0.3 and 0.4 % ) and (0.6 and 0.5 % )
], respectively for the different location during the two tested seasons in the two Governorates.
For maize mature stage % of damage in the different tested location at two sowing date during the two tested seasons in the two experimental Governorates were [( 2.1, 2, 1.6, 1.3 and 0.7 %), ( 2.3, 2.5, 1.7, 1.4 and 0.8 %)] and ( ( 5, 4.6, 4.6, 4.8 and 3.6 %), ( 5.4, 5.9, 5.8, 5.5 and 4.3 % )], respectively, in Kafr El-Sheikh and [ (1.3, 1.4, 1.1, 1.2 and 0.4 %), ( 2.1, 1.9, 1.8, 1.7 and 0.6 % )] and ( ( 3.4, 3.8, 3.4, 3.6 and 1.8 %), ( 4.5, 4.7, 4.3, 3.7 and 2.2 % )], respectively in Gharbia Governorate.
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