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Root decay

fallen tree from strong windTrees blow over in strong winds primarily because 1) roots are rotted or 2) soil becomes soft from rain or 3) a combination of both.

Naturally occurring fungi including armillaria and others can decay roots creating unstable trees. Root rot can be diagnosed with careful, regular inspections by accomplished arborists. Poor drainage or excessive rainfall rates can make soil soft and unable to hold trees erect.

fallen tree roots

arborist looking at tree roots