Pest identification
What's eating my red sails lettuce?
Aphids
Signs: Leaf-tip curl, honeydew, and dense colonies on young growth and leaf undersides
Control: Jet of water followed by insecticidal soap or dilute neem oil; repeat weekly until clear
Slugs and snails
Signs: Irregular holes eaten into leaves overnight; visible slime trails
Control: Iron phosphate pellets; gritty mulch or crushed eggshells around plants; evening hand-picking
Thrips
Signs: Silver-bronze stippling or streaks on leaf surfaces; tiny dark frass specks
Control: Remove infested outer leaves; apply spinosad or insecticidal soap; reflective mulch deters adults
Keep red sails lettuce pest-free
Healthy plants resist pests best. Get the basics right:
Red Sails Lettuce pests — FAQ
What is eating my red sails lettuce?
Red Sails lettuce is prized for its bronze-red frilly leaves, but those same open leaves are magnets for aphids, slugs, and caterpillars. The red pigment (anthocyanin) provides no pest deterrence. Aphids are by far the most consistent problem, especially in cool, humid spring conditions ideal for this variety.
How do I get rid of aphids on red sails lettuce?
Leaf-tip curl, honeydew, and dense colonies on young growth and leaf undersides Jet of water followed by insecticidal soap or dilute neem oil; repeat weekly until clear
How do I get rid of slugs and snails on red sails lettuce?
Irregular holes eaten into leaves overnight; visible slime trails Iron phosphate pellets; gritty mulch or crushed eggshells around plants; evening hand-picking
How do I get rid of thrips on red sails lettuce?
Silver-bronze stippling or streaks on leaf surfaces; tiny dark frass specks Remove infested outer leaves; apply spinosad or insecticidal soap; reflective mulch deters adults