How to identify
- Bright nymphs; adults yellow-green with four black stripes
- Round, sunken, dark spots that look like fungal disease
- Damage appears suddenly in late spring
Damage: Cosmetic leaf spotting; heavy feeding on herbs can set plants back.
Control methods
- Hand-pick early; damage often tapers by midsummer.
- Cut back heavily damaged mint and basil to regrow clean leaves.
- Avoid spraying for cosmetic spots alone — plants usually recover.
What products to use
We list product types and what to check on the label — not brand rankings, prices, or “we tested” claims. Always follow the label for your crop, and prefer the least disruptive option that works.
Insecticidal soap
When: Heavy feeding on young herbs
Look for: Labeled for plant bugs on herbs/vegetables; hit nymphs early