Woolly aphids (Pemphigidae) on ornamental plants in container productionMszyce z rodziny bawełnicowatych (Pemphigidae) w pojemnikowej uprawie roślin ozdobnych

Summary The following species of woolly aphids appeared in containers with coniferous shrubs: Gootiella tremulae on yews (Juniperus chinensis, J. horizontalis, J. × media and J. squamata), Prociphilus (Stagona) pini on pines (Pinus sylvestris and P. mugo) and Pachypappa vesicalis on Norway spruce (Picea abies). In container production of perennial plants, Colopha compressa was feeding on roots of sedges (Carex buchananii and C. morowii) and Thecabius (Parathecabius) lysimachiae on roots of golden creeping jenny (Lysimachia nummularia). In containers with deciduous shrubs such as Thunberg's barberry (Berberis thunbergii), smooth hydrangea (Hydrangea arborescens), weigela (Weigela florida), shrubby cinquefoil (Potentilla fruticosa), Japanese spiraea (Spiraea japonica) and Grefsheim spiraea (Spiraea × cinerea), the lettuce root aphid (Pemphigus bursarius) was found. However, this aphid was not inhibiting roots of deciduous shrubs, but was feeding on roots of common dandelion (Taraxum officinale) – common weed in container production.