الفهرس 
Materials and MethodsOnly 14 pages are availabe for public view
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Abstract
The Aim Of This Study Is To Show The Efficiency Of Certain Insecticides One Against One Of The Most Important Vegetable Pests And Its Relation To Lerance Levels. Also, The Effect Of Those Insecticides On The Microconstituent, Mainly Minerals(When Those Vegetables Are Considered As The Main Microelement Source For Human Nutrition) Is Studied. A Set Of Experiments Is Designed To Study The Following: I) Degradation Of Methomyl And Pyridaphenthion In And On Lettuce And Bean Plants. 2) Efficiency Of Mathomyl And Pyridaphenthion Against The Cotton Leafworm S. Littoralis When Sprayed On Lettuce And Bean Plants. 3)The Effects Of Methomyl And Pyridaphenthlon On Some Of The Major Microconstituents Of Lettuce And Bean Plants.