Bud 10 and what's new in rootstocks

Any updates on B10?

I have a few trees that were supposedly on B10 according to the salesman. It was the first time I’d heard of it, back in 2021. He said it was better than B9 for whatever salesman reasons.

So I planted about 8 trees from them. I pulled them from the stock I purchased for the company. 2 Cortland, 3 Buckeye Gala, and 3 Gravenstein.

All grew, a little slower than others. Have nice horizontal branching. Staked, mulched, and taken care of.

1 Cortland, 2 Gravenstein, and 2 Buckeye Gala just up and died. No borers, disease symptoms but just are dead in the spring after being healthy in the fall. They were vigorous enough that I was tying down branches.

Roots are very weak when I removed them. Possible root rot? Soils are not too heavy or wet.

Anybody else have any issues with B10 trees?

I had some issues with walnut toxicity, but that was 10 years ago. Trees with it tend to decline in the second summer.

M7 M9 and M111 trees are nearby.

Scratching my head here.

I have some Bud 10 here. Slow grower for sure in our hot, humid climate. But unlike Bud 9 it has not up and died here. Point of fact I ordered 3 1/2 caliper Bud 10 to make a tall stepover with Pionior scions which seem ideal for it.

I had roughly 25 of 50 bud10 rootstock die for whatever reason here last year. Some grew really well, some grew not at all. Heavy black clay. From now on any tree I want to be a dwarf will be an interstem, of 150 dwarf rootstock I’ve ordered the significant majority have died under my regimen of neglect

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@for_simplicitys_sake Don’t know if it’s true or not, but I read most dwarfing rootstock don’t do well in our climate. I’ve had the best results from seedling rootstock. Though I only have 3 years of fruit tree experience.

My experience as well. Im really only interested in m111 sized and up at this point. Planting 50 grafted over seedlings in our orchard this fall God-willing.

On the branch angles, here’s a bud10 with ashmeads kernel on it. They’re good angles but I wouldnt go out of my way to call them wide.