Well, three days ago, I included dishwashing liquid as a possible 4th segment in my monthly rotation of spraying for rust. I am trying Earth Choice dishwashing liquid - it has no bactericide added (I mix one part to 100 parts water). It takes forever to spray several hundred clumps by hand, alas, but I am curious.
The interesting thing is, the next day, the leaves looked sooo good on all the clumps - I mean really good. I am sure, however, it was trick of the light, which was filtered through whatever it is now deposited on the leaves.
I will give them three weeks and spray again with it. However, I am an empiricist - if it doesn't work, at least as a contact fungicide, it is down the kitchen sink with it.
