Our neighborhood and some Southern states trees have been attacked by diseases in the last 3 years.
We may know some diseases which could cause sick, and eventually dead of trees. The diseases are:
1) Dutch Elm diseases
The diseases caused by beetle, originally from Europe, and spread in many cities in the USA now days.
2) Armillaria Root Rot
It is a fungal diseases on rotting woods. This kind of fungi may infect living trees as well.
3) Black Knot Disease
A kind of fungi, attack on branches. Spreading from one tree to other trees during rainy season.
4) Bur Oak blight
This diseases caused by fungus called Tubakia dryina. We may see spots on leaves, then make leaves fall off the trees.
5) Spruce Decline
Fungus caused bald branches of blue spruce trees, then gradually make branches die, and fall. Diseases spreading to many parts of America.
6) Fruit tree diseases
One of well known diseases infects fruit trees is “Apple Scab.” Yes, the fungi caused green or brown spots of apple trees. Fallen leaves in great number may followed by tree death later on.
Moreover, we believed that our trees and neighborhood trees are infected by diseases called as “white powder.”
White spots are everywhere: roots, trunk, branches and twigs. We tried to save some trees by fungicide. It seems not work well.
Do you have trees in your backyard or garden? Do they have diseases?