Crape Myrtle Tip Dieback: Cold Snap, Overwatering, or Disease?

Crape Myrtle Tip Dieback: Cold Snap, Overwatering, or Disease?

A mature Acoma crape myrtle with tip dieback on new growth after a spring cold snap (40°F) may have cold injury, but ongoing dieback suggests overwatering or fungal issue. No aphids or obvious pests found.

Assessment

• Cold injury: 40°F rarely damages established crape myrtles; more likely in northern zones.
• Overwatering: Soggy soil causes root dysfunction, leading to tip dieback.
• Fungal canker: Less common but possible.

Management

• Check soil moisture; reduce watering if wet.
• Apply 100% pure neem oil as foliar spray: fungicide + miticide, rainfast, protects new growth.
• Prune dead tips back to live wood.
• Ensure good drainage and full sun.

Follow-Up

If dieback continues, submit sample to local extension for pathogen testing. Most crape myrtles recover with corrected culture.