Pittsburgh Metro Area

[disc4tw]

Major problem with Geneva rootstocks?

I’d say the concerning thing is that they have been staked and still broke. G.41 and G.935 are definitely known as having their problems - G.41 for weak scions/rootstock attachment and G.935 for being virus susceptible. I’d not be surprised if virus susceptibility showed up as a weak union too. Here is a curious plot. Note that the two Geneva stocks touted as free-standing trees for processing orchards - G.969 (6969) and G.890 (5890)- have the weakest union strength. [image]

I will leave this for you to check through as well… I have stuck with M111 mostly for my stocks and plan to prune to maintain size. Bud9 I’ve heard has some weird disease possible in our area and this thread on Geneva gives me pause.