Plum trees bear fruit in spring, but the small plums fall off a couple week later.
This article should help. http://extension.oregonstate.edu/gardening/tree-fruit-drop-normal-after-pollination
I have a very nice 3 year old plum tree. For the last two years it has leafed out nicely then bloomed profusely. Then I will walk out into the backyard to look at all of the blooms to find them dropped to the ground and no fruit develops. What am I doing wrong? Helen
This article may answer your questions: https://www.gardeningknowhow.com/edible/fruits/plum/plum-trees-not-fruiting.htm
Plum tree leaves have worm like things on the back of them.
It sounds like you may have a leaf blister disease of some kind. This article may help:
http://hyg.ipm.illinois.edu/pastpest/200206c.html
I planted my plum tree in the garden about 3 years ago (was in a pot for the first year). First year in the ground fruited lovely, last year fruit came we think the squirrels had the fruit as at night they where there gone in the morning (it wasn't the neighbor). This year the fruit has formed (still small) but all of a sudden the leaves half gone off half the tree. Pruned it last year for the first time blossomed lovely. Please help.
I would leave the fruit alone. If the tree thinks it's too much, it will shed what it can't handle. If you take a sample, take a fruit too.
Thanks very much for the reply in the affected area i have also noticed that the fruit that was growing has stayed really small, should i take these off? The rest of the tree (fingers crossed) is ok.
April
If only half of the tree is affected, I would suspect herbicide drift. If this is the cause, the leaves probably will not grow back this season, but should next year. If the problem gets worse, take a sample to your local agricultural extension office.
I have let the suckers go for 2 years on one of my plum trees. The sucker is around 2 inches thick. The actual tree is half that size. Should I take the sucker down or is it too late in the game for that?
If this is a plum tree that you get fruit from, I would certainly take the sucker down as it is drawing energy from the parent tree, which will affect its fruit production. If it is a decorative plum, you can remove it if you would like, but it is up to you. The sucker will still be sapping energy from the parent tree, which can slow its growth, but it should not cause harm beyond that. If you remove the sucker, be sure to use sharp, clean pruners so as to reduce the chances of disease getting in the wound.
I am living in Newfoundland and I planted two plum and two pear trees about four years ago. The problem I am having is that my pear trees have spots about the size of a nickle and are rusty in colour. I would like to know what it is and how to fix it. Also, my plum trees haven't blossomed since I planted them. Why and can I speed up this process? The pear trees have started to yeld fruit but they are scarce and small. Can I expect them to get bigger and they had black spots on them. I expected a late frost may be the reason.
It sounds like your pear tree has apple rust (which also affects pears). Here is more information on that: https://extension.psu.edu/plants/gardening/fphg/pome/diseases/rust For the plum tree, it is likely just not yet mature enough to bear fruit. They can take 3-6 years to mature. It may bloom for you this year. You can add some bone meal to the soil and that may help.
I have a Moyer prune/plum tree that has tiny, lime green balls collecting en mass on the blossom buds. I wash them off with a hose, but they keep coming back. They are not the same color nor look like aphids that may come later. What are they and how do I control them? Thank you.
It sounds like aphids. These pests are actually quite common on plum trees and may be green or black in color. We have found that neem oil is both effective and safe when it comes to treating or preventing aphid attacks. You can learn more about neem oil and aphids by reading the following articles: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm, https://www.gardeningknowhow.com/edible/fruits/plum/control-leaf-curl-plum-aphids.htm