What you will see
Shell-like bumps on shoots and the underside of leaves, sticky honeydew with black sooty mould on it; with heavy infestation, weak growth.
When to look
All yearHow to protect
- Prevention
- Keep the tree healthy; it can tolerate a light infestation.
- Encourage ladybirds, parasitic wasps and birds.
- By hand when you see themRemove adult scale insects and egg masses by hand when you see them; with large numbers this is not enough.
- Biological only when neededFor soft scales, Steinernema feltiae nematodes are sold for a specific problem (use with caution, as they can also infect non-target animals).


















