The thesis begins with a general definition of the term pesticides and information concerning pesticides in general. Below are the basic concepts for the purpose of easier understanding of composition, application and dosing certain types of pesticides. These are followed by some information about how the pesticides are applied once upon a time until today. These are good and bad use of pesticides where they see that prevailed still negative impact of pesticides, but the world has come to the point where he can no longer do not apply pesticides to ward off the pests. It will work in the knowledge of the properties of different types of pesticides. These are many kinds of pesticides, but from every kind described one that is most applicable. So there is a chapter on the division of pesticides extensively, but also detailed. The sixth chapter is based on a documentary of a man in danger in clearly setting out the problem of the use of pesticides and compounds that greatly affect people and animals. The following chapter on the consequences of pesticide poisoning, their symptoms and obligations that must be observed when working with pesticides. So here we find the prescribed personal protective equipment, which must bear the person carrying out the treatment plants in plant protection products. In the end, he mentioned Croatian legislation and the EU on the sustainable use of pesticides and clarified some directives concerning the use of plant protection products.