[Acari: Eriophyoidea on pome fruits, stone fruits and small fruits in Northern Germany]

apples beerenobst black currants blackberries cassis ciruela eriophyidae framboise frambuesa fruit crops frutales groseille rouge grosella negra grosella roja holunder identification kernobst manzana milbe plums pomme prune raspberries red currants steinobst zarzamora