Septoria leaf spot in parsley. The causative agent is the fungus: Septoria lycopersici. Symptoms and damages. This disease is destructive to the leaves, petioles and stems of tomatoes (it does not affect the fruits). It also infects lettuce, parsley, fennel, and others. also

Powdery mildew Causative agent: Fungus: Sleveillula taurica Symptoms and damages Symptoms appear in the form of white powdery spots on the leaves, buds and flowers, then the leaves turn yellow and twist, eventually leading to their fall.

Parsley is a flowering plant found in abundance in the Mediterranean basin, and it is one of the most widespread species. The French curly type and the Italian flat type. Parsley is an essential plant in Arab cuisine as an herb used in making spices or in cooking food.