Pest identification
What's eating my persicaria orientalis?
Aphids
Signs: Dense colonies on soft shoot tips and along flower spikes; sticky honeydew and leaf distortion.
Control: Knock off with a strong water spray; apply insecticidal soap; attract hoverflies and ladybirds.
Japanese beetle (Popillia japonica) — US
Signs: Adult beetles skeletonise leaves, leaving a lacy brown net of veins; feeding from late June through August.
Control: Hand-pick beetles into soapy water in the morning; apply neem oil as a deterrent; avoid pheromone traps near the planting.
Slugs and snails
Signs: Seedlings and young transplants are most vulnerable; ragged holes and slime trails at soil level.
Control: Ferric phosphate pellets around seedlings; use a grit mulch; sow seeds indoors to produce sturdy transplants.
Keep persicaria orientalis pest-free
Healthy plants resist pests best. Get the basics right:
Persicaria orientalis pests — FAQ
What is eating my persicaria orientalis?
Persicaria orientalis (kiss-me-over-the-garden-gate) is a vigorous annual that can face aphid infestations on its lush foliage and flower spikes. Japanese beetles may skeletonise leaves in North America. Slugs and snails attack young seedlings. Its rapid, robust growth means it generally outpaces minor pest damage.
How do I get rid of aphids on persicaria orientalis?
Dense colonies on soft shoot tips and along flower spikes; sticky honeydew and leaf distortion. Knock off with a strong water spray; apply insecticidal soap; attract hoverflies and ladybirds.
How do I get rid of japanese beetle (popillia japonica) — us on persicaria orientalis?
Adult beetles skeletonise leaves, leaving a lacy brown net of veins; feeding from late June through August. Hand-pick beetles into soapy water in the morning; apply neem oil as a deterrent; avoid pheromone traps near the planting.
How do I get rid of slugs and snails on persicaria orientalis?
Seedlings and young transplants are most vulnerable; ragged holes and slime trails at soil level. Ferric phosphate pellets around seedlings; use a grit mulch; sow seeds indoors to produce sturdy transplants.