What about scions. I generally don’t have any fireblight on a tree that has no grafts. Could grafting introduce it? Is there a recommendation for treating scions once they are received? Most treatments like weak bleach soaking seem limited to those sending scions.
Clearly I got the Euro strain of B9. The issue is whether or not nurseries that sell B9 rootstocks or apples on B 9 know what strain they are selling.
When it is fire blight, cutting sooner would be my approach and down to clean wood usually, at least 6-12” from the “dirty” wood.
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