Diagnosing Clematis Pest Damage

Unidentified pests eating clematis despite sprays need specific ID for effective control.

Common Clematis Pests

• Aphids: Clusters on new growth, undersides. Colors: green, yellow, black. Treat with insecticidal soap or strong water jet.
• Spider mites: Fine webbing, stippled leaves. Hot, dry conditions. Treat with miticide or neem oil.
• Slugs/snails: Irregular holes, slime trails. Night feeders. Beer traps, diatomaceous earth.
• Clematis borer: Wilting stems, sawdust-like frass. Prune out affected stems.

Action Plan

1. Inspect closely (hand lens helps) — note pest appearance, location.
2. Photo and send to local extension for ID.
3. Match treatment to pest; avoid broad-spectrum sprays that harm beneficials.

Location (state/county) enables specific extension contact recommendations.