Viewing post #652220 by tink3472

sooby said:

The article that mentions nickel not being effective on its own was the link that Michele gave earlier to the Dong, Jeffers and Buck article, which says: "Nickel has been reported
to reduce daylily rust development but it was not effective in our field trials". They did find it did better when combined with chlorothalonil, but I don't believe it was tested with any other fungicides so I don't know if one can necessarily extrapolate to a benefit in combination with fungicides in general. This research was also published in a shorter form in the AHS Daylily Journal of Summer 2011.

And that's my two cents worth

There was another article other than the one I linked about the use of Nickel Plus that detailed it more (may have been a second research) as the owner/maker of Nickel Plus was involved also and listed in that one. It had more detailed info and charts with the amounts, which products, and other info listed and the outcome of all of them. It's been a couple of years since I read it so it must be buried somewhere on the internet and I just can't find it; I came across it by accident the first time anyway.