Diseases and weeds in agricultural products are cause significant harm. Products and achieve high performance in terms of quality and quantity at the appropriate time with this disease, and it will be possible by ing the appropriate method of struggle. This struggle against the insightful way agricultural diseases will be discussed separately. Pathogens and weeds cultural, physical, mechanical, biological, biotechnological and chemical control methods will be explained and pesticides, formulation types, principles of pesticide applications will be given information about the common active ingredient

The objectives and aim to agriculturel control, control methods (cultural, physical and mechanical, biological, biotechnological, chemical and integrated control). Pesticide groups and their effect to pests and diseases. Pesticide effect to human, animal healty and environment.