Pulvinaria hydrangeae Steinweden, 1946

hydrangea scale

on trees, less often shrubs

Pulvinaria hydrangeae on Acer campestre

Acer campestre, female with ovisac

Pulvinaria hydrangeae: females with ovisac on Tilia

Tilia, females with ovisac (from van der Linden, 2007a)

parasite

The ovisac, that is formed in the months of June-August is elongated with three clear furrows. Hibernation as larva on the young branches.

hostplants

polyphagous

Acer campestre, negundo, palmatum, platanoides, pseudoplatanus; Aesculus x carnea; Amelanchier lamarckii; Aralia elata; Carpinus; Castanea sativa; Catalpa; Celastrus; Cornus mas; Corylus colurna; Diospyros kaki; Fagus sylvatica; Fraxinus; Hydrangea macrophylla; Lonicera; Magnolia; Malus floribunda; Morus; Phellodendron; Platanus; Populus; Prunus serrulata, x gondouinii; Pterocarya; Pyracantha coccinea; Pyrus calleryana; Quercus; Rhus typhina; Rosa rugosa; Salix caprea; Sorbus; Styphnolobium japonicum; Taxus baccata; Tilia americana, platyphyllos, x euchlora, x europaea; Ulmus; Viburnum opulus; Zelkova serrata.

distribution within Europe

(PESI, 2018).

synonyms

Eupulvinaria hydrangeae.

references

Gertsson (2016a), Jansen (1999b, 2000a), van der Linden (2007a), Malumphy (2010a), Schmutterer & Hoffmann (2003a), Seljak (2008a).

mod 8.vi.2018