How do I get rid of orange rust powder in my lawn?

https://www.gardeningknowhow.com/lawn-care/lgen/lawn-grass-rust-fungus.htm

wikiHow to Treat Lawn Fungus

It comes in many forms: irregular brown patches, unsightly gray splotches, stringy red threads, a dusting of orange-red powder, and more. Regardless of the specifics, however, when a lawn fungus strikes your lawn, you must take prompt action to prevent it from spreading and destroying your grass. Many post-disease treatments double as preventative measures and involve improving the drainage and air flow of your soil. Prevention, in fact, is the best treatment against lawn fungus. You can also apply various fungicides, both chemical and organic, to aid your lawn in its efforts to fight back against the disease.

You have what is called cedar rot, this is from the cedar trees. it will carry in the wind and plant itself on the lawn or other fruit trees, so i would treat all your trees and the lawn to keep that from being on the lawn and be careful it could kill the grass