Mangold fly
Pegomyia betae curtis
Description
The adult mangold flies are up to 7 mm long with greyish / brown bodies. The maggots (referred to as `beet leaf miners`) are legless, without clearly defined heads and are 6 - 7 mm long with semi-transparent bodies which are predominantly white in colour.
Symptoms
The first signs of beet leaf miner activity are small white elongated eggs, approximately 1 mm long, attached to the undersides of leaves or cotyledons. These are usually found in groups of 2 - 10 placed side by side.
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