Pupa for wasps.
It's probably from the white poplar.
The tree adorned with green fuzzy balls is a mimosa tree.
White tree fungus can be identified by its powdery white appearance on the bark or branches of trees. It may also have a fuzzy or velvety texture. Additionally, white tree fungus can cause the affected areas to become discolored or decayed.
A peach
sycamore
well i think they are a peack because peackes are fuzzy
they may be......afids
A mimosa tree?!
If it is a bush it could be a gooseberry.
A large fuzzy green caterpillar with yellow horns is a Imperial Moth caterpillar. These will go back into the tree if left alone.
It sounds like you are describing a honey locust tree (Gleditsia triacanthos). It is known for its large thorns and produces clusters of yellow, fuzzy fruit pods that contain sweet, edible pulp. Be cautious around the thorns, as they can be sharp and cause injury.
The trees in the garden have fuzzy balls that are actually seed pods. These pods contain seeds that can be dispersed by the wind or animals. The fuzzy texture helps the seeds to be carried away from the tree for germination.