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Boris Hrasovec's Images

Title: assistant professor, PhD
Organization: Faculty of Forestry
Unit: Forest protection dept.
Country: Croatia

Remove Filters: Hardwood(X)

6 Images of 2 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
1255003 oak casebearer Coleophora lutipennella
9008001 European mountain-ash Sorbus aucuparia
9008002 European mountain-ash Sorbus aucuparia
9008003 European mountain-ash Sorbus aucuparia
1255001 oak casebearer Coleophora lutipennella Overwintering larva in its pergamentous whitish case. If opened (case), dark brown caterpillar with shiny black head is found inside. Larva feeds with the bud interior almost completely boring inside the still closed bud. Overwintering loci are always on twigs in sheltered crevices near the buds. Case grows as larva gets bigger and after the pupation moths emerge in late spring - summer. Common pest sometimes causing mild damages on pedunculate oak (Quercus robur) stands in Croatia.
1255002 oak casebearer Coleophora lutipennella Boring holes left after the larva of the oak case-bearer consumed the interior of the bud. The buds with such damages will never leaf.

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