What's Eating My Mint?

Mint usually does the invading, not the suffering — so visible damage stands out. A short list covers nearly every case.

Spider mites

The signs: Pale stippled leaves going gray-bronze, fine webbing at stem tips in hot dry weather.

What it looks like: Tap a sprig over paper and watch for moving dust.

What to do: Shower the patch hard every few days — mites hate moisture — and cut the planting back to regrow clean.

Flea beetles

The signs: Small round pinholes scattered across leaves, spring-heavy.

What it looks like: Tiny jumping black beetles; mint has its own specialist species.

What to do: Mint outgrows it; shear the patch and let it reflush if the look bothers you.

Aphids

The signs: Curled sticky tips, colonies at growing points.

What it looks like: Soft green or dark clusters.

What to do: Rinse-blast and harvest hard; mint recovers from anything.

Loopers and cutworms

The signs: Ragged holes (loopers) or stems clipped at soil level in spring (cutworms).

What it looks like: Green inchworm-style larvae on leaves; C-curled soil dwellers below.

What to do: Handpick loopers, patrol soil after cut stems; a healthy mint bed shrugs both off.

When it's not a pest at all

Orange powdery pustules on stems and leaf undersides are mint rust, a fungus. Cut infected stands to the ground and remove the trimmings; clean regrowth usually follows.

Or just point your phone at it

Snap a photo of the leaf, the bug, or the droppings, and Harold — the advisor built into Homestead Paradise — names what he sees, tells you friend or foe, and what he'd do next. Honest when he's unsure, and careful where it counts.

Put Harold's Eyes on it — free 14-day trial