1. a caterpillar that feeds on leaves, especially one that damages crops or garden plants

Examples

• The farmer noticed leafworms had been eating his tomato plants.
• Green leafworms can cause significant damage to vegetable gardens.
• We found several leafworms on the underside of the cabbage leaves.
• The organic pesticide helped control the leafworm infestation.
• Leafworms typically emerge in late spring when new leaves appear.
• Birds are natural predators of leafworms and help keep their population in check.