Pest identification
What's eating my pontederia cordata 'alba'?
Aphids
Signs: Colonies on stems and flower spikes; sticky honeydew and distorted buds
Control: Knock off with a strong water jet; introduce ladybirds and lacewings. Avoid chemical insecticides directly over pond water.
Snails
Signs: Ragged holes and slime trails on emergent leaves near the waterline
Control: Hand-collect at dusk; use iron phosphate pellets on dry areas of the pond shelf — avoid sprinkling in water.
Waterfowl
Signs: Rhizomes uprooted; new shoots grazed at water surface, especially in established wildlife ponds
Control: Use planting baskets with heavy gravel topping; allow plants to establish fully before removing protective cages.
Keep pontederia cordata 'alba' pest-free
Healthy plants resist pests best. Get the basics right:
- What eats pontederia cordata — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common pontederia cordata 'alba' problems & fixes
- Pontederia cordata 'Alba' watering schedule
- Pontederia cordata 'Alba' light requirements
- Full pontederia cordata 'alba' care guide
Pontederia cordata 'Alba' pests — FAQ
What is eating my pontederia cordata 'alba'?
White pickerelweed ('Alba') shares the same pest profile as the species: aphids are the most frequent problem, clustering on stems and flower spikes. Pond-edge snails graze emergent leaves, and waterfowl may uproot shallowly planted rhizomes. Overall it is a robust marginal with few serious pest threats.
How do I get rid of aphids on pontederia cordata 'alba'?
Colonies on stems and flower spikes; sticky honeydew and distorted buds Knock off with a strong water jet; introduce ladybirds and lacewings. Avoid chemical insecticides directly over pond water.
How do I get rid of snails on pontederia cordata 'alba'?
Ragged holes and slime trails on emergent leaves near the waterline Hand-collect at dusk; use iron phosphate pellets on dry areas of the pond shelf — avoid sprinkling in water.
How do I get rid of waterfowl on pontederia cordata 'alba'?
Rhizomes uprooted; new shoots grazed at water surface, especially in established wildlife ponds Use planting baskets with heavy gravel topping; allow plants to establish fully before removing protective cages.