Which type of fungus primarily affects plants or inanimate objects but does not harm humans?

Mildew is a type of fungus that primarily affects plants and inanimate objects, such as fabrics and surfaces, without causing harm to humans. It is commonly found in damp environments and can appear as a powdery or downy growth on leaves or materials. Mildew thrives on organic materials, making it particularly relevant in gardening and agricultural contexts.

While yeasts are also fungi, they are often involved in fermentation processes and can affect human health in certain situations, such as causing infections. Viruses and bacteria, on the other hand, are different types of microorganisms altogether and can have various effects on humans and other living organisms, causing infections and diseases that can be harmful. Understanding the specific roles and effects of different fungi, such as mildew, helps emphasize their significance in the ecosystem, particularly in relation to plants and external environments rather than human health.