Insect
Leaf Miners
Larvae of small flies or moths that tunnel between upper and lower leaf surfaces, leaving visible winding or blotch-shaped pale trails inside the leaf.
Symptoms to Look For
- Winding pale serpentine or blotch-shaped mines visible inside leaves when held to the light
- White papery patches where the larva has consumed leaf tissue
- Heavy infestations causing leaves to dry out and drop early
Affected Plants
BrassicaSpinachChardBeetrootCeleryLeekTomatoPepperBeanPea
Organic Solutions
Manual removal
Crush larvae inside mines by pinching the affected leaf tissue between fingers, or remove and destroy badly mined leaves.
Row covers
Protect susceptible crops with fine insect mesh from germination onwards to exclude adult flies before they can lay eggs.
Yellow sticky traps
Hang yellow sticky traps among crops to monitor and trap adult flies before egg-laying begins.
Prevention
- Remove crop debris promptly as pupae overwinter in soil and old plant material
- Avoid growing susceptible crops in the same beds year after year
- Inspect young transplants carefully before planting to avoid introducing mined leaves
Garden, by Willowbottom recommends only organic, wildlife-friendly solutions. No synthetic pesticides, no harmful chemicals - ever.