Medicinal and aromatic plant extracts are considered as an alternative to chemical pesticides to combat plant diseases, including fungal diseases. They were used to protect plant production from diseases caused by fungal, bacterial, viral and nematode organisms that affect various field crops and cause large losses. And reduce losses resulting from infection, whether during the planting season or in the post-harvest stage, in order to keep pace with modern trends in disease control. Iraq is considered rich in medicinal and aromatic plants and wild plants due to its climate suitable for the growth of these important plants, which are a tremendous source of wealth. More than 250 plant species with medicinal or aromatic uses have been recorded. Among the medicinal and aromatic plants that are regularly grown in Iraq are basil, mint, lemongrass, garlic, thyme, and others. Some of them grow as ornamental plants or in a wild way, such as oleander, eucalyptus, and datura. All of these plants can use their extracts to combat many plant diseases, in the form of water or alcoholic extracts, or as a powder, to treat either seeds before planting or storage. Or used in the treatment of the root system or as a spray on the vegetative system, whether before or after infection.