Powdery Mildew Golovinomyces orontii

When/where did it begin?

It is believed that powdery mildew first grew 145 to 66 million years ago! They probably first grew in North America, such as in the United States.

What is its life cycle?

They look powdery because of tiny cells called "conidia" that travel through the wind and lands on plants, then sprout and go through the plant tissues. They are made every 3-14 days. In the fall, they spread to nearby plants and infect them, too.

What does it attack?

It can grow on hundreds of species (trees, shrubs, vines, flowers, fruits, veggies, grasses, weeds). No plants are completely safe from it! Some plants it affects most are sunflowers, roses, grapes, and potatoes.

What are the kinds of it?

Different varieties attack different plants! Erysiphe, Microsphaera, Phyllactinia, Podosphaera, Sphaerotheca, and Uncinula are the names of the groups of fungi that it is caused by.

How can we control it?

Sulfur or copper help, & baking soda or neem oil (pictured) are more natural options!

What are its threats?

Since it needs the plants it attacks and wind to bring it to them, those may change as climate change keeps happening. Main threat: climate change!

Fun Fact!

Unlike most plants or fungi, they do not need water to grow! It grows best in crowded, shady places with cool nights and warm days.

Sources: file:///C:/Users/mrsfa/Downloads/powdery%20mildew%20sources%20cited.pdf

Created By

Nicole Revai

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