It may be aphids.https://www.gardeningknowhow.com/edible/fruits/plum/common-plum-tree-pests.htm
I do not think so, but if you have sap, you'd better get a new tree. :)
yes. the purple plums are edible and any other plums
It is a light green, edible plum like fruit, that grows on a similar tree
Yes, the plums from the red plum tree are edible. Just note: There can be rotten plums that can cause serious sickness, so be careful about which plums you pick.
Lemon
Whict month of the year graft a cherry tree?
This could be a reaction to the tree's roots having too little, or too much water.On newly-planted trees, you could try elevating it a bit or providing additional drainage.Normally, a deciduous plum will only lose foliage in the winter.
it could
yes it is.
First, a screw is drilled into a maple tree, then, sap drips down and is collected in a bucket hanging underneath. Then it is sent to get edible, by adding sweeteners. You can buy syrup without the sweetness though.
You dig a hole and put the plum tree into it.