Translations:Adventist Youth Honors Answer Book/Nature/Insects - Advanced/30/en

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(2) Leaf mining

The horse chestnut leaf miner

The horse chestnut leaf miner (Cameraria ohridella or Cameraria operculella) is a moth of the lepidopteran family Gracillariidae. The Horse Chestnut Leaf Miner was first observed in Macedonia in northern Greece in the late 1970's, and was described as a new species in 1986. The moth grows up to 5 mm long and has shiny, bright brown forewings with thin black and white stripes. Its larvae are leaf miners on the Common Horse-chestnut (Aesculus hippocastanum), causing significant damage to the appearance of the trees. Despite the poor appearance of horse-chestnut trees infested with C. ohridella, there is no evidence that damage by the moth leads to a decline in tree health, the development of dieback, or tree death. Trees survive repeated infestations and re-flush normally in the following year. It appears that most of the damage caused by the moth occurs too late in the growing season to greatly affect tree performance. Consequently, there is no reason to fell and remove trees just because they are attacked by C. ohridella.