To put it simply it clogs up the tree's veins. Horse chestnut: Other pests and pathogens Common pests and pathogens affecting horse chestnut. Inflammation can cause excess fluid buildup in your tissues, which can lead to fluid retention and swelling ().Aescin is a component in horse chestnut … The current disease in horse-chestnuts is caused by a bacterium called Pseudomonas syringae pv aesculi. Bleeding canker is a disease that affects European horse chestnut trees (Aesculus hippocastanum) in Great Britain. The first is bleeding canker: bacteria infects the bark, cutting off the water supply to the crown. Horse chestnut has been used in alternative medicine and is likely effective in treating some symptoms of chronic venous insufficiency (decreased … All major diseased branches need to be removed, as diseased branches may … The fungal disease has had a devastating economic and social impact on communities in the eastern United States. This disease came to be known as chestnut blight.Naturally found in South East Asia, accidental introductions led to invasive populations of C. parasitica in North America and Europe. Cryphonectria parasitica is a parasitic fungus of chestnut trees. Caused by the fungus Guignardia aesculi, the disease produces reddish or dull brown, irregular blotches that are … Before using horse chestnut, talk to your healthcare provider. Laboratory studies suggest that the compound in horse chestnut known as aescin, or escin, has anti-inflammatory (1) , neuroprotective (1) , and antitumor (2) (3) effects, and enhances the efficacy of gemcitabine (18) . Overview. Horse Chestnut Bleeding Canker is a disease which affects major branches and stems. Guignardia blotch is a foliage disease of many Aesculus species, including California, Ohio, red, and yellow buckeye and common, red, and Japanese horse chestnuts. Many different organisms cause symptoms called bleeding canker in trees. The horse chestnut can live up to 300 years, provided it does not become infected with one of the many fungal diseases and other health conditions to which the horse chestnut is susceptible. Horse chestnut should not be confused with sweet chestnut. Horse chestnuts have been hit by two potentially life-threatening diseases. What damage does it do? You may not be able to use horse chestnut if you have certain medical conditions, such as: a bleeding or blood clotting disorder (horse chestnut can thin your blood); diabetes (horse chestnut may cause low blood sugar); kidney disease; liver disease; a stomach or intestinal disorder; Bleeding canker is killing horse chestnuts in significant numbers in Ireland. These include bleeding canker, which can cause their death; Guignardia leaf blotch; and horse chestnut scale insect. Horse chestnut trees in Ireland are threatened by a new parasite which has killed 50,000 trees in the UK. 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