Basil Leaf Miner Trails: Systemic Insecticide or Leaf Removal

Basil shows yellow trails with black centers and white edges, spreading to mint relatives; stems turn black and woody. The trails are characteristic of leaf miners—larvae feeding between leaf surfaces.

Control Options

• Hand-pick and destroy affected leaves if infestation is light.
• Systemic insecticide (absorbed into leaf tissue) from a garden center for heavier pressure.
• Monitor nearby herbs; leaf miners can move between related plants.

Early action prevents spread and preserves harvest quality.