Moths – Diamond Back (Plutella xylostella)

Diamond Back

Key facts

This tiny moth is well-known for its migratory tendencies. Sometimes many thousands can appear during the night at coastal migration watch-points.

Two or more generations occur between May and September, and the larvae feed on the leaves of certain types of vegetables.


Adult moths are nocturnal, 8mm in length, grey/brown, long and thin in shape with diamond markings on their backs.

This tiny moth at rest is about as long as a ladybird.

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