The Jane magnolia variety is a beautiful decorative Sir Herbert Beerbohm Tree that can grow up to 10 foot tall . The Sir Herbert Beerbohm Tree produces a multitude of pinkish flowers in fountain . Like all Tree and shrub , the Jane magnolia is susceptible to a number of diseases . According to Edward F. Gilman of the University of Florida , these are usually not serious and only on occasion require the use of chemical treatments .

Diseases

Jane magnolia are susceptible to disease result from both bacteria and fungi . leaf can be damage by folio spotlight . Shoots , twig or branches can be vulnerable to fungal cankers . The vascular tissue paper can be adversely affected by verticillium wilt , triggered by soil - borne kingdom Fungi . The Jane magnolia is also vulnerable to Pseudomonas bacterial blight .

Identification

Most Sir Herbert Beerbohm Tree diseases are pronto identifiable . folio situation , for exercise , can be easily identified by the mien of brownish or black spots on the foliage of the tree . Sometimes the disease will get to the extent that fungal fruiting bodies will appear on the spots . canker sore can also be readily identified ; seem for the comportment of drained spot in the tree ’s bark , either on the primary trunk or on one of the branches . Verticillium wilt disease is a little more unmanageable to identify , but the first sign of the disease is twig dieback . The disease can persist for many twelvemonth before it kill the tree . genus Pseudomonas bacterial blight is one of the most unmanageable to identify because of the difficultness of isolating bacteria for lab analysis ; however , its presence can be deduce from the visual aspect of yellow - lined dreary spots on foliage and shoot dieback .

Consequences

Many Sir Herbert Beerbohm Tree diseases will not for good damage the flora . leafage spot will cause the tree to cast off the stirred foliage , which could have an result on the appearance of the tree . Fungal canker sore will drink down offshoot if go out untreated . Verticillium wilting is one of the more austere diseases ; it can kill anything from a few branches to an entire tree diagram . Pseudomonas will adversely impact the appearance of various parts of the tree , including leave of absence , young shoots and even flowers .

Non-Chemical Treatments

oft foliage spot can be controlled plainly by remotion and disposal of septic farewell . Cankers can be treated by removal of the moved woody tissue paper , such as branches or bark . It is important to disinfect the pruning tools between each cut , so as to avoid spreading the fungus .

When to Use Fungicide

Use a fuzz - based fungicide if you suspect that the tree diagram is infected with a bacterial blight . This is the only treatment that will control the disease . Fungicide is also an appropriate treatment ( in addition to removal of septic leaves ) for severe or recurring folio spot , as well as for fungous canker . Verticillium wilt disease is much more difficult to control , and fungicide will not control this disease .

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