bstract The aim of this study was to determine the impact of certain levels of nitrogen and potassium fertilizations on the population density of Parlatoria blanchardii (Targioni- Tozzetti) infesting seedy Balady date palm leaflets at Esna district, Luxor Governorate during the two years of (2011/2012 and 2011/2013) as follows: Concerning, the nitrogen fertilizer, the results showed that the statistical analysis ...
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