Jr401
Seed
Earlier this summer I trimmed a bunch of suckers off a crab apple in the yard and used them to start cuttings just to see if I could do it. They were put in pots with commercial moisture control soil mix and no rooting hormone. Kept in morning sun (~4 hrs) and afternoon shade. They were growing well for over a month but this morning 6 of the 8 have suddenly developed black spots on their leaves and 2 of them it had progressed all the way to the trunks. I pulled and burned all the affected cuttings, they all had a pretty good start on roots except one.
I've done some checking online and am wondering if this is what is called verticulum wilt? The info I found describes yellow and red spots not black though? Any thoughts?
I've done some checking online and am wondering if this is what is called verticulum wilt? The info I found describes yellow and red spots not black though? Any thoughts?