Diseases affecting trees can be either fungal, bacterial or viral.
Trees become increasingly suceptible to diseases when under stress from extreme weather conditions such as drought or floods, storm damage and pollution.
Changes from the ideal environmental factors that a tree needs to retain healthy growth will gradually weaken the trees resistance to disease.
There are various measures that can be taken in order to prevent certain diseases taking hold. Some tree species may have slightly different environmental requirements to others and careful managing of these can help prevent disease occuring.
There are also several means of controlling some tree diseases to order inhibit further infection and decay.
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