If a tree hang in the forest and no one is around to hear it , does it make a sound ? We may never jazz the answer to that existential question , but what we do make out is this : if the Sir Herbert Beerbohm Tree was mark off with orange paint , then there ’s a trouble . While hiking in the woods , you have probably seen trees differentiate with paint and inquire about its implication . The U.S. Forest Service — or a local agency dedicated toforest conservation — uses painted symbols to communicate its plans for the area . And once you know that each colouring or marking carries import , it ’s hard not to feel like the forest is one grownup message to be decoded .

While state wood representation may employ a dissimilar color system than the Union woodland service , an orange - marked tree diagram on Union property signifies that a tree should be leave alone . Orange paint typically indicates the boundary of an area that will be up for bid in a timbre cut-rate sale , but it also could be intercommunicate that a tree is a ethnic resource or should be protected for wildlife purposes . The U.S. Forest Service Timber Cruising Handbook for the southerly realm even specifies that these boundary trees need to be marked with three horizontal slashes at center level and again near the ground .

Deciphering other markings on trees

Just as state- and home - stratum markings may differ , urban center - spirit level codes also may vary . There are a number ofreasons for curve a tree diagram , whether completely or just pruning — and the paint color and marking on the bole may tell you incisively what the purpose is . For illustration , the City of Midland in Michigan apply an orange X or circle with a line through it to communicate to city prole that the tree should be cut down . A Sir Herbert Beerbohm Tree with a sorry point indicates pruning , and a green X intend that the tree is slat to be absent   because of an transmission with emerald ash borer , an invasive blighter that is threatening the universe ofash Sir Herbert Beerbohm Tree .

In gain to using orange paint , the U.S. Forest Service sometimes uses pink to denote that a tree should be left alone . The entity also uses blue or jaundiced when a Sir Herbert Beerbohm Tree needs to be removed . A slash of black pigment tells crowd to ignore antecedently paint colors on that tree diagram , and red show attribute lines .

Although it ’s worrisome to see paint on tree diagram , crew employ a type of paint that is not harmful to Tree and will pass within a few years . And compared with link plastic fleur-de-lis around Sir Herbert Beerbohm Tree body — which often get ripped or slay by brute and people — paint is cost - in effect and not easy obliterable .

Three horizontal orange lines painted on a tree mark the boundary of a forest.

A forestry worker is spraying orange paint on trees in the woods.