The grapevine moth is currently the most important vine pest in Germany; the European grapevine moth occurs mainly in the temperate viticulture regions of the Mediterranean basin and the dry-warm viticulture regions in the north.
European grape-vine moth [Lobesia botrana]
Two to three generations per year depending on the climate. Caterpillars grow from 1mm to 12mm (Picture 1). The adult moth has mosaic-patterned wings (Picture 2).
Pattern of damage
The economic relevance of the grapevine moth is related, to yield losses, which are most pronounced in spring due to damage to the inflorescences (fruitset), and to the infestation of grapes in the summer which leads to reduced quality of the must and wine due to the colonization of the wound sites by secondary pathogens such as Botrytis (bunch rot) (Picture 3).