brown covering on my crepe myrtle leaves

What is causing brown covering on my crepe myrtle leaves? When I was looking at my trees the other day, I noticed a layer of brown on the top of the leaves. You can lightly rub it and it comes right off in flakes. Do I need to hose it down?

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1 Comment To "brown covering on my crepe myrtle leaves"

#1 Comment By Downtoearthdigs On 09/21/2015 @ 6:59 pm

This sounds like Rust Fungus.

Here is a link with more information.

https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm ^[1]
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm ^[2]

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URL to article: https://questions.gardeningknowhow.com/what-is-causing-brown-covering-on-my-crepe-myrte-leaves/

URLs in this post:

[1] https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm: https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm

[2] https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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