Protecting Redwoods from Periodical Cicadas: What You Need to Know

Cicada Preferences and Redwood Vulnerability

Periodical cicadas strongly prefer hardwoods and fruit trees for egg-laying. Redwoods (Sequoia species), being conifers, are not on their preferred menu. This fundamental difference significantly reduces risk to your 15-foot backyard redwood.

Assessing Actual Risk

Even during a 17-year cicada emergence year, infestations are highly localized. The insects may not reach your specific neighborhood. Monitor your property first before taking any protective measures.

When and How to Intervene

Only if you observe active cicada infestation on your redwood should you consider treatment. In that case, an insecticide like Malathion applied according to label directions can protect the tree. Preventive spraying without confirmed presence wastes resources and introduces unnecessary chemicals.

Key Takeaway

Stay observant but don't panic. Your redwood's coniferous nature is its best defense. Watch for the distinctive cicada choruses and flagging branch tips—then act only if necessary.