الفهرس 
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Abstract
In The Present Study, An Experiment Is Conducted On Giza 67 Variety(Which Is Cultivated In Menoufia) In The Farm Of Agriculture, Tanta University, Suebin El Kom Rabib. The Insecticides Which Are Used In Two Successive Seasons Are Applied In Three Times 10 Days Intervals,Are; Phosvil, Nuvacron And Cyolane Four Replicates Are Designed In The Experiment Corresponding To Each Treatment In Randomized Distrbution In The Field. All The Other Cultivating Treatments Are Conducted Quite Similar By In All The Plsts Of The Experiment Under Investigation. A Sample Of Cotton Corresponding To Each Treated Is Ginned.