Xenacrockett said:
Which ones work best on daylily rust? I don't know.
But having so many choices does give options in spray rotation to avoid resistance.
From that point of view, rather than check out a long list of products/active ingredients that may or may not be available in the USA and which haven't necessarily been tested for daylily rust, it might be easier to start with the studies that have been done on fungicides specifically for daylily rust and go from there. Some of the studies are linked to from this thread, others are listed on my daylily rust info site at
http://web.ncf.ca/ah748/rust.h... especially on the literature list and FAQ pages. (Copper was tested in one of them, BTW). Also from the FAQ page there is a link to an AHS Daylily Journal article PDF on daylily rust control, including suggested fungicide rotations.
For other options in rotation to avoid resistance, the FRAC codes (Fungicide Resistance Action Committee) list for 2014 is available here:
http://www.frac.info/
as is a list of fungicide common names (for 2012).
BTW a Google search suggested the Australian site is blacklisted for having, at some time, hosted malware. Whether it still does or not wasn't clear.
