Tag: Horse chestnut

Horse Chestnut Canker, caused by the bacteria Pseudomonas syringae pv aesculi, is the most serious disease affecting trees in the Aesculus family. The canker will attack trees of all ages and is most dangerous on trees in the age range up to 30 years old, after which their trunks get wide enough for girdling to… Continue reading Horse Chestnut Tree Canker Disease

What are these brown spots on my conker tree’s leaves? Horse Chestnut Leaf Blotch is a fungal condition called Guignardia aesculi that affects horse chestnuts, not sweet chestnut. The main symptom is irregular brown blotches on the leaves, starting at the edges, from late June. Although Horse Chestnut leaf blotch is not pretty, it does not… Continue reading Horse Chestnut Leaf Blotch