Adults of this single-brooded species are active at night in September; caterpillars are present from early spring to July and feed on marsh mallow roots. The overwintering stage is the egg Marsh mallow moth range
Following a decline that started in 1966 Marsh mallow moth habitat
The foodplant, marsh mallow, grows in damp, low-lying places along watercourses, field margins and ditches Marsh mallow moth status
Classified as Rare in Great Britain Marsh mallow moth threats
The main reason for the decline of this species seems to be loss of the foodplant resulting from repeated mechanised ditch clearance, drainage, herbicide use and overgrazing Marsh mallow moth conservation
The Marsh Mallow moth has been targeted by the UK BAP (Biodiversity Action Plan) as a priority for conservation action. Both remaining populations occur within Sites of Special Scientific Interest (SSSIs), and the population of the marsh mallow foodplant has been sinvertebrates_freshwater
The UK Biodiversity Action Plan for this species is available at UK BAP.
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