Pest identification
What's eating my velvet bean?
Aphids
Signs: Sticky colonies on tender shoots; sooty mold on honeydew deposits; retarded new growth.
Control: Blast with water; apply neem oil or insecticidal soap; introduce natural predators such as ladybirds.
Whitefly
Signs: Clouds of tiny white insects rising when disturbed; yellowing leaves; sooty mold on honeydew.
Control: Use yellow sticky traps to monitor; spray with insecticidal soap or pyrethrin; introduce Encarsia parasitic wasps.
Spider mites
Signs: Pale stippling and bronzing of leaves, fine webbing on undersides in dry heat.
Control: Mist foliage regularly; apply miticide or predatory mites; avoid water stress.
Leaf-eating caterpillars
Signs: Ragged holes in leaves and stripped pods; frass trails visible on foliage.
Control: Hand-pick or apply Bt spray; remove egg masses from leaf undersides early in the season.
Keep velvet bean pest-free
Healthy plants resist pests best. Get the basics right:
Velvet bean pests — FAQ
What is eating my velvet bean?
Velvet bean (Mucuna pruriens) is a vigorous tropical legume vine most commonly attacked by aphids and whitefly on new growth, and spider mites in hot, dry conditions. Leaf-feeding caterpillars and pod-boring insects can cause significant crop damage in warm climates. Its urticating hairs deter many larger herbivores.
How do I get rid of aphids on velvet bean?
Sticky colonies on tender shoots; sooty mold on honeydew deposits; retarded new growth. Blast with water; apply neem oil or insecticidal soap; introduce natural predators such as ladybirds.
How do I get rid of whitefly on velvet bean?
Clouds of tiny white insects rising when disturbed; yellowing leaves; sooty mold on honeydew. Use yellow sticky traps to monitor; spray with insecticidal soap or pyrethrin; introduce Encarsia parasitic wasps.
How do I get rid of spider mites on velvet bean?
Pale stippling and bronzing of leaves, fine webbing on undersides in dry heat. Mist foliage regularly; apply miticide or predatory mites; avoid water stress.
How do I get rid of leaf-eating caterpillars on velvet bean?
Ragged holes in leaves and stripped pods; frass trails visible on foliage. Hand-pick or apply Bt spray; remove egg masses from leaf undersides early in the season.