" title="Crying or Very sad" /> Any one have success with controlling apple crown rot? I've planted my dwarf trees on mounds because of our poor clay soil and thought they were doing fine, but lost one tree last year and I'm on my way into losing another as it is declining before my very eyes. I'm also worried about my other trees in the vicinity. Do I even dare plant replacements? I've found a good source for smaller quantities of Aliette WDG but it might be too late?
Thanks in advance
Can you mix the fungicide with outdoor grade latex white paint and coat the trunks with that to permanently keep fungus at bay?
What sort of rootstock are you using? I notice that any of the Geneva series of rootstocks have been selected in part due to their resistance to crown rot. LINK
Looks like Bud 9 and Bud 490 are also resistant. LINK
If there are wild populations of seedling apples local to you, would you be willing to transplant small specimens of those to your location during the winter months, and graft them over to your chosen varieties once established? Or maybe extreme dwarfing trumps everything.
The trees affected are from Miller, apparently Malling 7 according to their site. I am not sure about mixing latex with fungicide.... what I have seen recommended is clearing of soil from the trunk for the summer to let it dry and treat topically with a copper based fungicide and/or systemically with Aliette. I will try this on the affected tree and treat the others with Aliette.
Thanks, Cosmicorchardguy
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