apple replant disease & pear fireblight soil advice needed

[tutti]

Hello, I'm new to fruit growing and need some advice about reusing apple and pear soil, for further planting of the same.
1) I have a one year 2 year old apple tree m106 in the ground and want to dig it up and replant the same variety and rootstock apple tree, but better branched and 3 years old in it's place. Will it suffer from replant disease, and if so, is there a way around it? ie. replace some of the soil or add something.

2) I had a 2 year old pear in a pot (120l) and it dies of fireblight (70% sure.) What could I use the 120l of good quality and well prepared soil for? Could I replant another pear in it? Should I put the soil around the garden, near other fruit trees? Unsure, as don't want to throw it away, but need to avoid any contamination to other trees.

[boundtothesoil]

I wouldn't worry about the 'replant' disease issue. This is sometimes a problem when grubbing up established orchard trees and replanting. You've only had a tree growing for year or so. There should be no problem planting a new young tree in the same spot. I've planted apple trees in the same location many times at intervals of every three- five years without any problem.

As far as your possible 'fireblight' case goes, once again I'd just replant whatever you fancy, given that infection of pears with this pathogen is most commonly through their blossom. It would be interesting to see if 'lightening strikes twice.'

[tutti]

I agree, but thought someone may have some inside knowledge about it.... through bad experiences! Fortunately being new to fruit tree planting I can always afford a bit of trial and error, as trees are so young they are easily replaced. Only problem is it will take even longer for them to mature and bare some viable fruit. Oh well, part of the fun I suppose.

[FB.]

I agree, but thought someone may have some inside knowledge about it.... through bad experiences! Fortunately being new to fruit tree planting I can always afford a bit of trial and error, as trees are so young they are easily replaced. Only problem is it will take even longer for them to mature and bare some viable fruit. Oh well, part of the fun I suppose.

As BTTS said: replant isn't likely to be a major concern in your situation. However, if the previous tree died from a root or lower trunk disease such as crown rot, there is a high risk that planting the same rootstock will result in the same problem.
I've experimented a little with replant/diseased soil and putting MM106 into a spot where a young MM106 died or failed to thrive due to crown rot has a very high risk of the same problem happening to the new tree.
Even with soil replacement there's still a moderate risk.
Planting a different rootstock of equal or greater vigour is usually successful.