Betula pendula is ordinarily know as the European birch . The fine , weeping branches of the tree as well as its beautiful fall color make it a wonderful accession to your landscape design . The European birch is susceptible to a few diseases : canker sore disease , dieback and Marssonina leafage spot .

Tree Characteristics

The European birch rod is hardy in zones 3 through 6 . This ornamental Sir Herbert Beerbohm Tree is often used as a shadiness or specimen tree near a deck or patio . It can touch a height of from 40 to 50 foot , and a spread of from 15 to 25 feet . The silhouette of the European birch is irregular , and the pyramidal , oval shaped crown has weeping branches . Growth rate is medium ; it is a finely textured Sir Herbert Beerbohm Tree with white bark , which adds interest to the landscape . Leaves are green during the produce season , changing to yellow in the crepuscule . It need full sun and will tolerate most well - drain land .

Canker Diseases

The European birch is susceptible to several canker diseases . canker sore diseases are due to fungus . The canker disease infects and kills the sapwood of the birch tree diagram , create sunken areas on the trunk and large limb of the tree diagram . There is no therapeutic for canker diseases – there are no chemical control . The upright defense against canker sore disease is to maintain a healthy tree through lacrimation and fertilization . It is also important to avoid wounding the tree , as wounds provide an entry way for disease . A distressed tree is also more susceptible to disease .

Dieback of Branches

Dieback occurs to the upper branches on the crown of the tree . The Sir Herbert Beerbohm Tree demo these stagnant branches slowly over time . stagnant limb should be prune out to increase the energy of the tree , according to the University of Florida . The respectable defense against dieback is to maintain a intelligent Sir Herbert Beerbohm Tree by follow a regular program of lachrymation and fertilisation . Dieback of branches is also a symptom of an infestation by the bronze birch woodborer . There will , however , be more idle outgrowth present on the tree . ( Bronze birch borers are the most serious of all pests that can attack the European birch rod tree . )

Leaf Spot and Defoliation

According to the University of Illinois , the European birch is susceptible to Marssonina leaf spot , a fungal disease . This infection in general begin in early spring when the tree is beginning to bud . Spores are spread to the emerging leaves , and by mid- to former - July you will notice brown spots with yellow rings around the spots seem on the leave . smirch may amount together , imprint a bombastic brown leaf touch . Some leaves might fall off the tree prematurely . spartan cases of leaf spot can defoliate a tree diagram .

Controlling Leaf Spot

Once the symptoms come along , it is too late to do anything about leaf spot – fungicides will not be effective . Leaves should be raked up and disposed of . Leaf spot will not drink down the tree but it is unsightly and it will do stress . If you have had a knockout compositor’s case of folio pip in one growing time of year , the unspoiled defense ( so that it does not go back ) is to apply a fungicide in the spring of the next time of year , when the bud first begin to appear .

References

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