of Ukraine. Diseases Bleeding canker. Half of all horse-chestnuts in Great Britain are now showing symptoms to some degree of this potentially lethal bacterial infection. Guignardia leaf blotch, caused by the fungus Guignardia aesculi Wood rotting fungi, e.g. such as Armillaria and Ganoderma Horse chestnut scale, caused by the insect Pulvinaria regalis Horse-chestnut leaf miner, Cameraria ohridella, a leaf mining moth. The larvae of this moth species bore through the leaves of the horse chestnut, causing premature colour changes and leaf loss. Phytophthora bleeding canker, a fungal infection. Gallery References hippocastanum Flora of Bulgaria Flora of Greece Flora of North Macedonia Garden plants of Europe Medicinal plants of Europe Ornamental trees Plants described in 1753 Plants used in bonsai Trees of Europe Trees of humid continental climate Trees of Mediterranean climate Taxa named by Carl Linnaeus