Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Cydia duplicana is a small moth of the family Tortricidae. It is found in all across Europe, extending barely into Asia in the Transcaucasus, Turkestan and Kazakhstan. The wingspan is 13 19 mm. Adults are on wing from May or June to the end of July. There is one generation per year.The larvae (caterpillars) feed on European Silver Fir (Abies alba), Norway Spruce (Picea abies), junipers (Juniperus) and pines (Pinus). Larvae can be found in resin deposits, thickened cankerous branches infested by fungi and in mechanical injuries of the host plant. The larvae only mine to the nearest injury on the bark.