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Abstract
The Present Study Aim To Choose Certain Materials Of Varied Properties, Fomulated Them At Different Types Of Formulations, I.E. Soluble Powders, Dust Powder, Emulsifiable Concentrate And Soluble Liquid To Facilitate Their Handling And Application. Physico -Chemical Properties Of These Types Of Formulation And The Other Tested Chemicals, And Their molluscicidal Efficiency Were Tested In The Laboratory. Field Experiment Were Conducted By Spraying (SP) And The (EC) Formulations And Dusting The Dust Powder Of Formulations On Apple Trees To Evaluate Their Molluscicidal Effects Against The Small Sand Snail Helicella Vestalis. Also, Studying The Side Effect On The Sprayed And Dust Formulations On Apple Trees Were Adopted.