Ronny07 said:Which fungicide works well against rust on daylilies?
Typically the strobilurins (e.g azoxystrobin, pyraclostrobin) but they are expensive. The least expensive strobilurin has been reported to be trifloxystrobin - it can be purchased in smaller amounts but I don't know how the price compares these days. A different type of fungicide, tebuconazole, was reported to be cost effective in this study:
https://apsjournals.apsnet.org...
(Note that the above study uses the old placement of daylilies in the lily family, Liliaceae whereas they are now considered part of the Asphodelaceae family.)
But if you have a regular, frequent spray program you should always rotate and not use the same or a related fungicide every time otherwise there is the danger of the fungus becoming resistant. In other words don't rotate azoxystrobin with pyraclostrobin.
