Pest identification
What's eating my pink evening primrose?
Flea beetles (Altica texana, A. polita)
Signs: Numerous small round holes through leaf surfaces, most obvious on young foliage in spring and again in autumn.
Control: Use row covers or fleece on young plants; diatomaceous earth around the base deters adults; established plants tolerate light damage without treatment.
Aphids (Anoecia oenotherae, Aphis oestlundi)
Signs: Colonies on stems and new growth cause leaf curl, yellowing, and sticky honeydew.
Control: Knock off with a strong water jet; apply insecticidal soap if infestations persist; attract ladybirds and lacewings as natural predators.
Japanese beetle (Popillia japonica)
Signs: Flowers and foliage skeletonised by beetles feeding in groups during midsummer.
Control: Hand-pick beetles into soapy water in early morning; neem oil spray as a deterrent; remove badly affected flower heads promptly.
Deer and rabbits
Signs: Foliage and stems browsed, sometimes heavily, particularly in spring when growth is soft and palatable.
Control: Wire mesh cloches or repellent sprays protect young clumps; established plants regenerate rapidly from rhizomes even after heavy browsing.
Keep pink evening primrose pest-free
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Pink Evening Primrose pests — FAQ
What is eating my pink evening primrose?
Pink Evening Primrose (Oenothera speciosa) attracts a handful of specialist feeders. Flea beetles are the most visible insect pest, peppering spring foliage with small holes. Aphids cluster on stems, and Japanese beetles may visit flowers in midsummer. Deer, rabbits, and woodchucks browse the foliage; the plant spreads vigorously by rhizome and usually recovers fast from light browsing.
How do I get rid of flea beetles (altica texana, a. polita) on pink evening primrose?
Numerous small round holes through leaf surfaces, most obvious on young foliage in spring and again in autumn. Use row covers or fleece on young plants; diatomaceous earth around the base deters adults; established plants tolerate light damage without treatment.
How do I get rid of aphids (anoecia oenotherae, aphis oestlundi) on pink evening primrose?
Colonies on stems and new growth cause leaf curl, yellowing, and sticky honeydew. Knock off with a strong water jet; apply insecticidal soap if infestations persist; attract ladybirds and lacewings as natural predators.
How do I get rid of japanese beetle (popillia japonica) on pink evening primrose?
Flowers and foliage skeletonised by beetles feeding in groups during midsummer. Hand-pick beetles into soapy water in early morning; neem oil spray as a deterrent; remove badly affected flower heads promptly.
How do I get rid of deer and rabbits on pink evening primrose?
Foliage and stems browsed, sometimes heavily, particularly in spring when growth is soft and palatable. Wire mesh cloches or repellent sprays protect young clumps; established plants regenerate rapidly from rhizomes even after heavy browsing.