Flies are attracted to decaying organic matter, such as rotting fruit or sap, which may be present on your tree. The flies are likely feeding on this material, so removing it can help reduce the fly population.
The tree covered in spiky green balls is called a sweet gum tree.
The tree you are referring to is likely a hazelnut tree. Hazelnuts are covered by a green husk that eventually turns brown and splits open to reveal the nut inside.
The outside covering of a tree trunk is called bark.
Its tree sap from a tree if your car is under a pine tree then that's your answer
moss
the only way you are covered is if you stand in the way of the tree and get hit as well why does everyone ask stupid questions
Tree Bark
Spoiled and covered with eggs and larvae of flies.
The green tree frog, hyla cinera, does eat flies and crickets.
yes
bark
Bark