My flowering cherry is loosing its leaves,it flowered well but not many leaves formed like the year before.It was covered in what i thought was blobs of white stuff almost like filler.blamed the local builders as we have house building nearby.however the white blobs are all over the branches and backs of the leaves.It really looks quite sick.sorry no pics.
It would really help me to have some pictures, but without them my best guess would be a fungal infection. In this case, the best treatment will be wettable sulfur and dolomitic lime. This will kill the infection, as well as keep the soil conditioned while this is happening.
If you can find a way to include photos, then I can identify the exact pest, and offer a more customized solution.
Old trees not pruned in years. Many "water sprouts?"
If your question is about removing "water sprouts", yes you should, but within reason and with selective judgement, case by case, cut by cut. Thinning to reduce overcrowded branch structure and poorly placed water sprout growth is beneficial.
Removing more than 25% of the canopy at one time is not advisable. Leaving selected well-placed water spouts and shaping them to become part of the branch structure can be considered.
This tree must be 20+ years old. About 7 years ago it was incorporated into a raised bed and I was wondering if it might be a problem with nutrition?
This is pretty typical of an aging tree. I wouldn't worry too much about it. This article will give you more information on the care that they require: https://www.gardeningknowhow.com/ornamental/trees/ornamental-cherry/flowering-cherry-tree-care.htm
I moved into a house two years ago with a young Sakura blossom tree that was staked and tied. It has grown quite tall with one long very thin branch at the top, but doesn’t seem to be growing wider. Shall I remove the stakes and ties, and where does it need pruning to help it grow? It’s ok flower at the moment.
You can prune these anytime after flowering, but if you just want to remove that leader, then it is ok to do so at any time.
If this is still staked up, then you can remove those, unless it looks like the tree was recently planted. If it looks to be established, then it will be fine to remove these.
This article will give you more information on their care: https://www.gardeningknowhow.com/ornamental/trees/ornamental-cherry/flowering-cherry-tree-care.htm
Please find attached a photo of some leaves that are falling from my ornamental cherry tree. There are also dead ones at the end of branches. The tree is very mature and is about 25ft. Many thanks. Mrs Lesley Peacock.
You should do a careful inspection on the bark, branches and leaves of the tree.
Remove any fallen leaves from around the tree and dispose of to help from spreading any disease.
These articles will help you pinpoint the issue.
https://www.gardeningknowhow.com/edible/fruits/cherry/cherry-tree-diseases.htm
https://www.gardeningknowhow.com/edible/fruits/cherry/leaf-spots-on-cherries.htm
https://www.gardeningknowhow.com/edible/fruits/cherry/cherry-tree-leaking-sap.htm
https://www.gardeningknowhow.com/edible/fruits/cherry/cherry-rust-treatment.htm
It has been really hot here this summer. I planted the tree in late February. It has done wonderful til up to July. Is it stressing?
It certainly can be due to heat stress.
This article covers watering and will help you make adjustments through this heat period.
https://www.gardeningknowhow.com/edible/fruits/cherry/how-to-water-a-cherry-tree.htm
ad of deer repellant. What should I do to the affected area? The leaves where I accidentally sprayed are wilting and turning brown. I sprayed approximately 36 hours ago. Once I detected my mistake, I have sprayed the affected areas with water to try to wash of the weed killer. Do you have any suggestions on what I can do overcome this spraying error
I'm afraid there is not much you can do at this point except 'wait and see'. If you used a systemic herbicide like RoundUp you may have killed the tree and root system. If it was a foliar desiccant like diquat or herbicidal soap it may re-foliate in time.
It's a tragic situation, but not uncommon. Yours is the second question like this that I've answered this week. It's a good lesson to always use separate sprayers for herbicides, and mark them well for identification of the contents.