The maple tree diagram family , or Aceraceae , is a class of more than 700 deciduous tree diagram and shrubs . This hardy family is sun - loving , and each displays colourful and showy fall colour . Most member of this family are relatively disease and pest barren . However , there are several trunk guff diseases in which most , if not all , of the maple family appendage are susceptible .

Heart Rot

Heart rot is a passive fungal disease that is because of a collection of varying fungus . The fungus is found on dead and decaying debris and quondam stumps . These fungal spore are unable to penetrate the healthy bark of the maple tree diagram and , or else , infect the tree through its open wound . Targeted combat injury include the pruning and polish scars . The infection results in a reformist radioactive decay of the torso ’s interior tissue paper . septic trees may also develop mushroom growth around the theme of the tree , a true sign of fungal contagion . There is no cure or treatment for heart rot . gravely infect trees will become unstable and should be removed and destroyed . Tree stumps should also be removed to foreclose further irruption .

Shoestring Root Rot

Shoestring etymon rot , formally fuck as armillaria root rot , is a soil - borne fungal disease . The maple family is normally infected by this disease . The shoestring fungal spores prey on step down maple trees that have been stressed by grave weather precondition , such as unreasonable heat and drought , poor drainage and wet ft , hoarfrost , and lack of sunlight . The disease infect the maple tree through its root - weakened root organization and kill the Sir Herbert Beerbohm Tree ’s feeder roots . septic maple trees experience yellowing and discoloration of their leafage , loss of energy , dieback and previous defoliation . Smaller maple Sir Herbert Beerbohm Tree will succumb to the disease much faster than larger maple Sir Herbert Beerbohm Tree . Shoestring radical rot can be prevented by wield the maple tree ’s vigorous growth and keeping its region loose of defoliated and dilapidate debris . chemic treatments are not recommend for infected Sir Herbert Beerbohm Tree , as explain by the University of Illinois Integrated Pest Management .

Brown Cubical Rot

Brown cubical rot is a predatory fungal disease that is grease - borne . The disease prey on maple trees that have lose injury to their root scheme . The fungus assail the root system and low part of the bole , ab initio causing a somewhat yellowish stain . septic maple trees also develop fungal conks around the groundwork of the tree diagram . Rather than decaying , the duramen of the taint maple tree breaks into third power as it becomes unannealed . Like many trunk rot diseases , there is no cure or treatment for brown cuboidal guff . Severely infected maple tree must be removed to prevent potential collapse of the tree .

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