Dr. Phyto

peony

Paeonia lactiflora

Diseases & pests on this plant

• peony grey mould / botrytis blightBotrytis paeoniae

  Young shoots wilt and collapse suddenly in spring, blackening at the base just above ground; buds turn brown and fail to open (bud blast); a fuzzy grey mould covers rotting buds, stems and leaf bases in damp weather. Older brown patches on leaves may show faint concentric zoning.

• grey mould (Botrytis)Botrytis cinerea

  Fuzzy grey mould on leaves and stems.

• sclerotinia stem rotSclerotinia sclerotiorum

  White cottony growth on stems at flowering height, stems split open to show black sclerotia (1–5 mm) embedded in pith, premature ripening of affected plants.

• olive Verticillium wiltVerticillium dahliae

  Half a tree wilting in summer while the other half stays green, blackish discoloration in cross-section of affected wood, partial recovery in winter then relapse, dieback over 2–4 seasons.