菊科白粉菌（学名：Erysiphe cichoracearum）是属于白粉菌目白粉菌科白粉菌属的一种真菌，寄生在菊科植物上。该种分布于全世界。

Erysiphe cichoracearum is a plant pathogen that causes powdery mildew disease of cucurbits, including melon, cucumber, pumpkin, and squash. The primary symptoms are white, powder-like spots on the leaves and stems. Sphaerotheca fuliginea causes a similar looking powdery mildew of cucurbits.