Meyer Lemon Leaf Curl, Freeze Protection, and Neem Oil Use

A Meyer lemon in NW Florida with curling leaves, past caterpillars, and recent light freezes needs pest management and cold protection. Leaf curl often signals aphids (check undersides) or scale (hard, immobile bumps). Dry conditions can also cause curling.

Pest Treatment

• Spray horticultural oil (e.g., SunSpray) + neem oil, targeting leaf undersides. Repeat 2–3 times at 2-week intervals.
• Scale test: Dead scale flakes off with a strong water jet.
• Neem oil is an organic compound (azadirachtin) found in many brands (e.g., Ferti-Lome Triple Action Plus). It controls insects, mites, and fungi. Verify "neem" on label.

Freeze Protection for Large Trees

Your tree is too big for blankets. Instead:

• Water deeply before freezes — moist soil releases heat.
• Wrap trunk with pipe insulation or tree wrap.
• Use a smudge pot (oil-burning frost protector) if temps drop to mid-20s°F for extended periods.
• Don't prune until after last frost — foliage insulates.

Mature citrus can survive brief mid-20s exposure. Size = hardiness. Prioritize root zone moisture and trunk protection.