I have a Mt. Larch that has needles that are turning brown at the tips. It started after the needles started to harden. My ?s relate to what I might have done to cause this;
- Too much watering? Haven’t changed my watering pattern.
- Repotting too late? Could this be due to repotting shock? While I moved it I tried not to disturb the root mass.
- Too much fertilizer? Using organic Bonsai Gold?
If you have any ideas on what is going on I would appreciate your advise. Hopefully the tree isn’t permanently
Looks like either needle cast or sunburn.
Did you wire it before or after the needle opened?
Good point, I did some afterward.
So hopefully you are looking at damage to the needles from brushing with you hand as the wire went on. Either way, the tree is now stressed and it’s down to you to make it up to it. I would hold back with pruning until it can rebuild its energy, and pay extra care with water and fertiliser. At least it will drop the needles in a few months; with a pine you have to look at this type of damage for 3years!