Biology, Ecology, Symptoms and Management of Downy and Powdery Mildew Diseases: A Review

Downy mildew and powdery mildew are fungal diseases that cause diseases in plants. They are a major limiting factor for the production and productivity of crops and they are caused extensive quantitative as well as qualitative damage to the crops. These plant pathogens damage crop quality and yield worldwide. They cause a variety of symptoms on the affected plant parts and cause severe infections. The severity of downy and powdery mildew diseases varies and the variations depend on the environmental conditions. During favorable environmental conditions, they cause serious yield reduction. To minimize the losses caused by these fungal pathogens it is important to understand the pathogen biology, ecology, symptoms, damage, and differences between the two fungal pathogens that is important for identification and successful management methods. Hence, the objective of this review is to summarize current knowledge on the general biology, ecology, symptoms, damage, and control of downy mildew and powdery mildew of fungal diseases. Downy mildew and powdery mildew fungi cause significant diseases in a variety of economically important crops. These diseases often cause rapid and severe losses of crop yields. To reduce the losses caused by downy mildew and powdery mildew diseases, timely application of cultural, chemical, biological, host plant resistance, and integrated disease management methods are essential. Therefore timely application of management methods for mildew diseases is crucial for effective control. Specifically, integrated disease management serves as the most effective strategy to minimize the damage caused by these diseases, ultimately enhancing both the quantity and quality of crops globally.