Cannas that look very Unhappy

Question

We have just moved into a new home with a well established garden. However, the Cannas look miserable – small, brown leaves with quite a bit of an infection, I think. I have attached some pictures. We live in Kampala, Uganda. It’s near the equator but at a slight altitude. So relatively cool, lots of rain, and great gardening all year round.

Thanks in advance for your help

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Answer 1

This appears to be a 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