Well, I think it is called suckers.
The quaking aspen tree is a short-lived tree and insect and disease affected. Suckers grow from the root that destroys a good landscape.
I have an ornamental plum tree but I fight the sucklings so much. How can I get rid of them?
depends on the tree. some trees like olives will grow suckers all their lives while most will stop when the tree is big enough to shade the trunk. pruning can help shape the tree to bear more fruit which will sap the suckers strengh but until then you simply need to cut them as low as possible. is this a home garden tree or a farm?
Seed
yes
Yes.
In New York,the redwood tree can grow the highest.It roots is so huge that it can grow 20 feets.
bannana trees reproduce from either suckers or seeds with seeds not suckers ok
This means that the top has probably died. You need to cut out the entire top and choose one of the suckers for a new main branch. It is best to consult an arborist if the tree is large.
Yes they do grow down, they can also create 'suckers' that are self rooting side plants
no.