6
votes
Accepted
Is the fruit from this plum blossom tree edible?
Some plums are inedible, from having too high a level of cyanide in the fruit. Sometimes they will also have high levels of oxalic, malic, and tartaric acid that cause inedibility. All those things ...
- 51.5k
6
votes
What is causing the rotting/brown spots on my plum fruit?
As you're not in the States, you won't have a 'phytosanitary seller'.
This is commonly known as brown rot in the UK, and is pretty common - sets in usually as a secondary infection following damage ...
- 129k
6
votes
Accepted
What is causing the rotting/brown spots on my plum fruit?
It looks like Monilinia laxa but it can be M. fructicola or M. fructigena (all from fungi kingdom).
Why I opted for M. laxa?:
Because the gummy secretions in your picture.
By geographical location.
...
- 1,175
6
votes
How do I encourage my plum tree to produce fruit?
If you get blossoms but no fruit, I found with my cherry tree that this can be caused by sparrows pecking at the flower centers, stopping the tree from fruiting.
I put sparkle tape around the ...
- 61
6
votes
Does pruning a plum tree to maintain its size and shape prevent it from fruiting?
Knowing nothing about your particular plum variety, or growing conditions, I will simply report that I have had 5 Japanese plums of 3 varieties for 21 years. For 20 years the harvest was 0, 1, or 2 ...
- 18.4k
5
votes
Accepted
Need identification on this growth on cherry & possibly plum trees and possible remedies
Looks like chocolate slime mold... Seriously... Also known as Stemonitopsis. It is normally feeding on dead trees, so I don't think it is causing your tree problems. If parts of your trees are dead (...
- 12.8k
4
votes
Why isn't my Victoria Plum tree fruiting?
I have a plum tree (not a Victoria but a similar variety). After about 4 years in the ground (I planted it as a 2/3-year-old fan) I had a single plum. The next year I had several kilogrammes. Since ...
- 1,102
4
votes
Best remedy for rot in plum tree
Your tree is a very, very old lady - average productive life span for a plum tree is around 10-20 years, though it obviously varies between individuals and many go on for longer, getting more gnarly ...
- 129k
4
votes
Tree identification Washington State
It seems a wild Prunus domestica (plum). "Wild" this time means probably grown by core of cultivated plums (or just few generation from such cultivated plum).
I have several of this "wild" varieties,...
- 13.9k
3
votes
Why one of my Red Cherry Plum tree's stem turned yellow?
I think it is nearly dead. Probably it didn't have enough strength to properly build roots.
- 13.9k
3
votes
Plum Tree Issue with Rot
Cut the tree and burn the wood, otherwise the disease might spread to other plants.
Edit: The reality is that
The tree's life will be shorter than the life of a healthy tree.
The disease is ...
- 5,366
3
votes
Why isn't my Victoria Plum tree fruiting?
Three years is very young for a plum tree. I know many nurseries will tell you that their plants will begin to bear fruit in 3-5 years, but in my experience, 6-7 is more likely. It is also not ...
- 9,424
3
votes
Plum Tree Issue with Rot
This is not looking good - the photograph appears to be showing an area on the main trunk, but it's not clear whether this area is near the base of the plant or much higher up, though I suspect it's ...
- 129k
3
votes
What kind of plant will my Red Cherry Plum stems grow into?
From your question, and the answers in comments, it seems it's not clear how many plants were supplied, but it seems to be three. Whether they're all the same or not is hard to say at this stage, but ...
- 129k
3
votes
Is there a way to discourage plum trees from fruiting so heavily?
The easiest method is to chemically thin the flowers with one of the products available on the market.
Edit: The substances are sprayed on the flowers when the tree is 80% in bloom and about half of ...
- 5,366
3
votes
How do I encourage my plum tree to produce fruit?
I have two Santa Rosa plum trees and they produced hundreds of blossoms but no fruit last year and this year. The stems of the blossoms and the blossoms themselves turned brown and fell off. I was ...
- 31
3
votes
Does anyone know what this is on my plum tree?
It's one of the slime moulds in its sporangium stage (most likely Enteridium lycoperdon) and unfortunately, its presence indicates that either your tree is dead, or is on its way out, for they usually ...
- 129k
3
votes
Accepted
Will mirabelles grow and fruit in Northern England?
The ideal condition for growing mirabelle plums is indeed found farther to the south. It is suited to a northern Mediterranean climate, with France and Spain being significant producers. They also ...
- 667
2
votes
How do I encourage my plum tree to produce fruit?
Twisted, you've said some of the blossom remains, withered, on the tree, even with some of it starting to produce fruitlets - the likely cause of this problem is Blossom Wilt, a fungal infection, ...
- 129k
2
votes
Why does my plum tree never come into fruit?
As you've described the blossoms 'all dried up into dead clumps', I'm assuming those clumps remain on the tree. If that's the case, your tree is probably suffering from Blossom Wilt, a fungal ...
- 129k
2
votes
Lack of Blossom and Fruit on my Plum Tree!
If your tree is in your lawn perhaps the high nitrogen fertilizer used for the lawn has told your plum to put out vegetative growth versus reproductive growth...?
- 39.8k
2
votes
Lack of Blossom and Fruit on my Plum Tree!
I'd like to ask how you pruned it - plums fruit on year old and older wood, so if you took off quite a lot of growth, you may well have removed the wood which would have flowered/fruited this year. ...
- 129k
2
votes
Why are these leaves white on my plum seedling?
White leaves on plants usually occurs because of cold - you say its been unseasonably warm, but have you had no cold nights at all? A windowsill can be a chilly place to be overnight...
Otherwise, ...
- 129k
2
votes
Does pruning a plum tree to maintain its size and shape prevent it from fruiting?
To keep the tree small you need to summer prune. All new growth can that is cut back to one leaf bud or more will still fruit.
You can also do scoring. ( you can research that on google)
- 21
2
votes
Plum Tree Issue with Rot
No treatment at all. Leave it alone. No staking either. Half the vascular system is still viable. I would THIN your tree so wind is able to go through the branches without being stopped and able ...
- 39.8k
2
votes
Plum tree - No leaves
The visible signs here are indicative of a canker disease; the infection enters through a wound on branches, perhaps high in the tree, which contaminates the sap transporting tissues in the tree. ...
- 18.8k
2
votes
Accepted
Why wait to lop off a bacterial canker?
In the UK, the recommended time for pruning plum trees is April or July, but definitely not at other times because of the risk of silverleaf disease.
I'm not sure that is canker, and its definitely ...
- 129k
2
votes
Plum Tree/Bush Mystery
The leaves look like plum to me (but that doesn't guarantee they are plums, it only means there isn't an obvious reason why they are not plums!)
They are still very small and look like they might have ...
- 11.2k
1
vote
Why is the trunk on my plum tree soft?
Not sure what's caused the problem, causes can be physical damage, cold damage or insect invasion, but stone fruit trees like plum are very prone to getting something called gummosis - whilst I can't ...
- 129k
Only top scored, non community-wiki answers of a minimum length are eligible