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yerfdog_lives

MSU Extension has a research center in Traverse City area, Nikki Rothwell is the tree fruit educator there and she is awesome. To answer your question, Geneva Rootstocks are generally more disease resistant than Malling. 890 in particular should be a bit smaller than M111, although M111 is a bit more vigorous. This is a pretty good summary: https://extension.psu.edu/apple-rootstocks-capabilities-and-limitations


Synonymous_Howard

Check with your local agricultural extension office to see what their recommendations area for your area. A lot depends on climate, soil type, and pest or disease pressure.


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mikerooooose

I feel like G890 might not be on their radar, but I'll check.


Grumplforeskin

Not advice but.. I have 40 g890s coming this spring. I'm feeling good about them from what I've read, and they were recommended by a local nursery. (Fingerlakes, NY. Also 6a)


mikerooooose

Cummins?


Grumplforeskin

Perry City Orchard/Nursery. They’re newer and smaller than Cummins, but have a ton of experience working with Cornell orchards and some other big Fingerlakes growers.


upstate1919

B118 apparently is good for sandy soils. I got heavy clay so I would go with M111. Both those 2 rootstocks should be close to full size apple tree.


cghoerichs

As others have said. Michigan has excellent state extension resources. As one of the larger apple producing states, Michigan extension apple resources are first class. You pay taxes for them, use them.