Black Knot Fungus and non-toxic home made fungicide?
I've recently inherited some fruit trees, Italian Plum and some kind of Cherry tree. These trees were neglected pruning wise and they have many branches that are infected with the Black Knot fungus. I've read up a lot about Black Knot and have begun to prune away 6" below the fungus. I still need to get up on the ladder to get the rest and to shape the trees.
Anyways I have a couple questions. First off, what do I do when the Black Knot is growing on the trunk or in a major limb/trunk intersection? Secondly is there anything non-toxic that I can mix up and spray on the trees? Like baking soda, milk, cinnamon or chamomile? From what I've read the suggestion is to use lime-sulfur or copper sprays, both which I refuse to use. So if anyone has any information/experience on handling Black Knot let me know.