Pest identification
What's eating my genovese basil?
Japanese Beetles (Popillia japonica)
Signs: Skeletonized leaves with only the veins left; adults feed in clusters on upper foliage in summer
Control: Hand-pick beetles into soapy water in the morning; avoid pheromone traps near the crop; neem oil spray deters feeding
Aphids
Signs: Curled, sticky leaf tips; soft insects clustered on stems and shoot tips; honeydew mold
Control: Knock off with water spray; insecticidal soap; plant companion flowers such as marigolds to attract beneficials
Slugs & Snails
Signs: Holes in young leaves and stems, particularly on seedlings after transplanting
Control: Iron phosphate bait pellets; copper barrier tape; hand-pick at night; avoid overwatering
Spider Mites (Tetranychus urticae)
Signs: Fine stippling on leaves; silvery or bronze discoloration; tiny webbing on undersides of leaves in hot, dry conditions
Control: Increase humidity; mist foliage; apply neem oil or insecticidal soap; introduce predatory mites (Phytoseiulus persimilis)
Keep genovese basil pest-free
Healthy plants resist pests best. Get the basics right:
Genovese Basil pests — FAQ
What is eating my genovese basil?
Genovese basil's biggest enemies are Japanese beetles and aphids outdoors, and spider mites or thrips when grown indoors. Slugs attack young transplants. Caterpillars occasionally graze leaves. Regular scouting and removing damaged foliage quickly prevents most populations from escalating.
How do I get rid of japanese beetles (popillia japonica) on genovese basil?
Skeletonized leaves with only the veins left; adults feed in clusters on upper foliage in summer Hand-pick beetles into soapy water in the morning; avoid pheromone traps near the crop; neem oil spray deters feeding
How do I get rid of aphids on genovese basil?
Curled, sticky leaf tips; soft insects clustered on stems and shoot tips; honeydew mold Knock off with water spray; insecticidal soap; plant companion flowers such as marigolds to attract beneficials
How do I get rid of slugs & snails on genovese basil?
Holes in young leaves and stems, particularly on seedlings after transplanting Iron phosphate bait pellets; copper barrier tape; hand-pick at night; avoid overwatering
How do I get rid of spider mites (tetranychus urticae) on genovese basil?
Fine stippling on leaves; silvery or bronze discoloration; tiny webbing on undersides of leaves in hot, dry conditions Increase humidity; mist foliage; apply neem oil or insecticidal soap; introduce predatory mites (Phytoseiulus persimilis)