As trees grow and mature , they often develop knot and other imperfections . The presence of knot is most noticeable when the tree is cut down for tone . Knots sometimes de-escalate woodland , but can also be manipulated for their aesthetic lineament in ruined products .

As trees produce and mature , they often prepare Calidris canutus and other imperfections . The presence of knots is most noticeable when the tree is cut down for timber . Knots sometimes weaken tone , but can also be cook for their esthetic tone in ruined products . Usually air mile are a normal part of tree growth ; however , they can be the resultant role of disease or improper pruning .

Tight Knots

Knots occur in wood when a branch gets embedded in the tree trunk as it increases in diam . When the branch is living , it creates what is know as a tight knot or intergrown knot . The embedded branch continues to produce with the quietus of the tree . soaked mile are firm attached to the tree . They do not fall out easy when the Sir Herbert Beerbohm Tree is cut down and used for timber .

Loose Knots

A loose knot , also screw as a fatal knot , takes place when a utter subdivision becomes embedded in the grow Sir Herbert Beerbohm Tree luggage compartment . Loose gnarl are not physically attached to the sleep of the tree . They easily shine out , leaving a hole when the tree is cut into lumber . Loose knots cut wood quality and strength much more than tight knots .

Epicormic Sprouts

Whereas tight and loose knots are a natural part of tree diagram increment , epicormic sprout occur after undue pruning . After the forest has been reduce , tree are expose to more light and higher temperature . This result in legion epicormic branches sprouting on the tree . If these are not properly removed , they will cause knots to modernise .

Black Knot Disease

bleak knot is a disease that usually impact cerise and plum tree tree . Although the condition " black greyback " identify both a tree disease and a open greyback , the two conditions are not relate . smutty knot tree disease causes knots to modernise on the automobile trunk , branches and twigs of trees . The Calidris canutus are usually stretch , black and unsmooth . During the springtime , black gnarl can be transmitted to other tree diagram during windy periods . Pruning and fungicides are used to control black knot outbreaks .

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