What you will see
Adult beetles notch leaf edges; larvae eat the roots and the plant wilts.
The source says: it is among the perennials prone to damage.
How to protect
- Prevention
- When planting and repotting, check the roots and remove larvae.
- Encourage birds, toads, hedgehogs and ground beetles.
- By hand May to SeptemberEvening collection of adult beetles by torchlight; pick larvae out of the roots and soil.
- Biological August to early September, soil warm enoughNematodes (Steinernema, Heterorhabditis) watered into the soil against the larvae.
























