Calamondin Tree: Brown Dots, Sap, and Spider Mites

Small brown dots on Calamondin leaves and branches, plus sticky sap, often point to spider mites—not scale or overwatering. These tiny pests thrive in hot, dry, dusty conditions and cause stippling and leaf drop.

Key Signs of Spider Mites

• Fine webbing on leaf undersides (not always visible).
• Tiny, moving specks—best seen with a magnifier.
• Leaves may bronze or yellow before falling.

Watering Guidelines

• In ground: ~3 inches per week, more in heat.
• In pot: Daily in hot weather if drainage is good. Avoid standing water.
• Overwatering is unlikely in a well-drained pot.

Treatment

Spray with insecticidal soap or 100% neem oil. Neem oil adheres well and provides residual protection. Reapply to new growth as needed. Ensure the plant isn’t water-stressed, as that invites mites.