This was our first year grafting, and it's been kind of good news/not so good news of late.
The good news is that the Blue Pearmain graft I had more or less given up on has unexpectedly gotten itself going. If it keeps going, that would put us at 20/25 on our apple bench grafts, much better than I was really expecting. Credit to my dad for the knife work, and to all of your for your helpful advice!
On the not so good news front, most if not all of our apples did start to run into problems over the last month or so. Started with kind of crumply looking leaves, and then leaves getting kind of browned out along the edges, particularly on new growth, with some coming out damaged and some failing to really come out at all. I didn't know what I was looking at, to be honest, but after following a link posted by @mamuang, I concluded that it was probably a nutrient deficiency, most likely potassium, possibly also calcium. (One hint to the latter being that it seemed to be particularly bad on our Ashmead's Kernel, which can have issues with calcium, if I recall correctly?) So, in "gotta do something" mode, I put on some fertilizer that my wife had gotten for her potted Meyer lemon - and voila, we've been getting clean, green growth again. So, big thanks to Mamuang! And if anyone has suggestions about how best to deal with the nutrient issues in the future, I would welcome the suggestions.
Unfortunately, that brings me back to the bad news side of the equation: our pears. I did all kinds of dumb things with them, I'm afraid, the main and worst one being that I stored the rootstocks (OHxF 333) in pots that turned out to drain very poorly. Which was really dumb, dumb, dumb. But anyhow, we ended up with three rootstocks that just died, three other grafts that failed to take though the rootstock seems to have survived, and only four out of ten grafts that have any scion growth at all. Out of those, one, the Tyson, seems to be doing ok now, and noticeably better since the fertilizer application. One, the Magness, started out the strongest - which is not saying a whole heck of a lot - but seems to have stalled out at about four inches of vertical growth. The other two, the Harrow Sweet and the Urbanistes, have hardly put on any vertical growth at all, though there seem to have been some slight positive signs since I put on the fertilizer. In addition, while the leaves that have come out have been mostly clean and green, the growth overall has been kind of limp and floppy.
So, long story short, I screwed up the rootstocks and the pears have been paying the price. My question for you guys is whether you think the pears are likely to be an "it takes time" scenario, where they will eventually recover, apart from the three rootstocks that appear to be dead, or a "time to start over" scenario. If you do think the pears can bounce back from my bad pear parenting, is there something more I should be doing at this point to help them do so? As always, your advice is greatly appreciated.