Podosphaera fuliginea

Podosphaera fuliginea is a fungal species that belongs to the Erysiphales order. It is commonly known as the causative agent of powdery mildew, a widespread plant disease affecting a variety of crops and ornamental plants.

Taxonomy

Podosphaera fuliginea is a member of the Erysiphaceae family, within the Ascomycota division of fungi. It was first described by the mycologist Pierre-Marie-Alexis Millardet in 1878.

Description

The fungus is characterized by its white, powdery appearance on the surface of infected plants. It produces conidia (asexual spores) that are spread by wind and can survive in a dormant state during unfavorable conditions.

Hosts and Symptoms

Podosphaera fuliginea primarily affects members of the Cucurbitaceae family, including cucumber, melon, and squash. Symptoms of infection include white, powdery spots on leaves, stems, and fruit, which can lead to yellowing and wilting of the plant.

Management

Control of Podosphaera fuliginea involves a combination of cultural practices, such as crop rotation and sanitation, and the use of fungicides. Resistant cultivars are also available for some crops.

See Also

• Powdery mildew
• Erysiphales
• Cucurbitaceae

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