This is a seedling Zelcovia that I bought this spring from a nursery. I had it in the heated garage for awhile until it quit freezing and then put it outside on a bench that only gets morning sun. I'm assuming this is sunburn. I have some quince that did the same thing only they look pretty limp and upset now. I have taken all affected trees back into the shade. What should I have done to avoid this. Barely hit 79 F one day but sun here and there for a couple of weeks. Can I defoliate the Quince or the Zelcovia? I would think it's way to early for shade cloth. Advice appreciated
Zelcovia burn?
- Thread starter August44
- Start date
Just stop buying seedlings before last freeze! I think maybe morning sun only if it was inside a bit, not sure I do any young trees in full sun unless it's a juniper. I keep my elms in pretty heavy shade and they still ramify.
Deep Sea Diver
Imperial Masterpiece
Looks like chlorosis. Most likely due to lack of sun, there are plenty of other less likely reasons.
Iron Chlorosis products/treatment: 1) soil application of elemental sulfur combined with ferrous (iron) sulfate; 2) soil application of iron chelates; 3) foliar sprays containing ferrous sulfate or chelated iron; Most garden supply stores stock at least one if not all of these.
These trees need to green up and strengthen before they can take more sun. Once they green up ease each tree slowly into their normal light over a couple weeks. The most weakened leaves may not respond and die.
In the future once trees push their buds they need sunlight or an acceptable substitute light. Once a tree pushes leaves and begin photosynthesizing, the tree starts getting energy positive. If trees aren’t in adequate light when they push leaves, the tree will continue to push, lose more and more energy, weaken and waste away if this situation is not reversed…. Defoliating will make-the situation even worse, quite possibly kill the tree.
Just for future knowledge, defoliation can only be done for a healthy tree and is often overused as an effort to solve problems caused by poor horticultural practice, imho it should be used sparingly if at all.
cheers
DSD sends
Iron Chlorosis products/treatment: 1) soil application of elemental sulfur combined with ferrous (iron) sulfate; 2) soil application of iron chelates; 3) foliar sprays containing ferrous sulfate or chelated iron; Most garden supply stores stock at least one if not all of these.
These trees need to green up and strengthen before they can take more sun. Once they green up ease each tree slowly into their normal light over a couple weeks. The most weakened leaves may not respond and die.
In the future once trees push their buds they need sunlight or an acceptable substitute light. Once a tree pushes leaves and begin photosynthesizing, the tree starts getting energy positive. If trees aren’t in adequate light when they push leaves, the tree will continue to push, lose more and more energy, weaken and waste away if this situation is not reversed…. Defoliating will make-the situation even worse, quite possibly kill the tree.
Just for future knowledge, defoliation can only be done for a healthy tree and is often overused as an effort to solve problems caused by poor horticultural practice, imho it should be used sparingly if at all.
cheers
DSD sends
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leatherback
The Treedeemer
As said before, move things into the sun slower. The Zelkova will respond by pushing buds along the branch and once it does, you can pick of any leaves that were damaged.
JudyB
Queen of the Nuts
Yes looks just like too much sun too fast. Won't be a problem after it gets acclimatized. I would leave the damaged foliage on, it may still be photosynthesizing and feeding the tree. No reason to defoliate young trees like that, you want them to grow not slow. If the leaves are damaged enough they will fall off on their own.
Mr nuttiest...one can buy these seedlings, and many other types of seedlings in the early spring from sellers on the net. I can't wait until it quits freezing because they will be all gone by then. They were in my garage in front of a south facing window and then, yes, they were put in MORNING SUN ONLY and it was never over 75 F. Obviously that was to much. Also, let me know where you
can find Zelkova seedlings this time of year cause it just did quit freezing here a couple of weeks ago.
PonderingSage:
Shohin
This has been a weird spring. Here (and l’m sure where you are) it went from 40s and raining straight to full sun and 75. I lost some two year old seedlings.
Hang in there August!
Hang in there August!
Haha 44 just messing with you on seedlings - we buy japanese maple for fall color on the front porch but leaves don't make it through summer! I have to buy it at the beginning of november or be happy with pumpkins.
