sooby said:Doesn't Bayer Advanced Disease Control for Roses etc. have tebuconazole as the active ingredient? That comes up at US$23 for enough to make 42 gallons according to one Google result (I have problems with these searches sometimes because I get automatically switched to Canada and a lot of pesticides you can get there are not permitted for homeowners here).

I find I have to watch Amazon, sometimes the prices are actually very high compared to elsewhere.

You are correct! In the smallprint on Amazon it lists 2.9% tebuconazole as the active ingredient.
https://www.amazon.com/dp/B000NCUW6M/
I have also attached a pic of one of the reviews saying it is great for daylily rust!



Mentions 2.9% tebuconazole:

That 42 gallons would last me for just over 2 sprayings. I spray depending on the weather and the condition of the plants every 14 to 21 days. I might have to continue until late fall, and I started in March.