Diagnosing Chewed Leaves on a Greenhouse Lemon Tree

Nocturnal Pests

Leaves yellow with sections eaten. Culprits: slugs, snails, earwigs, caterpillars. Inspect at night with flashlight—they hide by day.

Safe Control (Edible Citrus)

• Hand-pick at night.
• Beer traps for slugs.
• Diatomaceous earth around pot base.
• Neem oil or spinosad (organic, follow label).

Critical

Never use toxic systemic insecticides on fruiting plants. Read labels. Poison on fruit = poison in you.

Greenhouse warmth accelerates pest cycles; vigilance is key.