Leek moth

Chiefly suffered on the south-east coast of the UK, the Leek moth is a fairly recent addition to leek-growers' troubles.

Identifying Features
Caterpillars eat into the leaves resulting in white-brown patches on the leaves. Leaves may turn yellow and begin to rot in severe cases.

Treatment
Remove and destroy affected plants.

Prevention
When transplanting; consider covering leeks with fleece if you think this might be a problem.