Sticky Meyer Lemon Indoors: Scale Insects and Neem Oil

Cause

Sticky honeydew everywhere = scale insects (likely soft scale). They feed on sap, excrete sugar-rich liquid.

Pure Neem Oil (Dyna-Gro) – organic, persistent, also fungicide/miticide. Spray entire plant, including blooms for better fruit set.
Safe on hibiscus and orchids (except African violets).
Fruit drop on young tree may be natural or due to watering fluctuations.

Consistent neem oil sprays break the cycle.

Plant Diseases: Meyer Lemon Pest Management: Slugs, Aphids, Leaf Curl, and Organic Fruit Safety; Aphids on Indoor Meyer Lemon: Organic and Chemical Options; Meyer Lemon Fruit Scarring: Insect Identification and Pre-Harvest Timing; Schefflera Sticky Sap: Aphids/Scale and Atomic Grow Systemic Unlock; Dwarf Lemon Sticky Residue: Scale or Aphid Honeydew Solution; Indoor Lemon Tree Honeydew in Ireland: Scale/Aphid Management with Neem Oil; Meyer Lemon in NJ: Indoor Pests, Pot Size, and Neem Oil Rescue; Meyer Lemon Beaded Stems: Scale Insects; Troubleshooting Leaf Drop on an Indoor Meyer Lemon Tree; Old Lemon Tree Decline After Repotting and Pruning

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