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Eleven
species of Gnaphalium are recorded in Britain.
These include the native Jersey Cudweed (G. luteoalbum),
Marsh Cudweed (G. uliginosum), Highland Cudweed (G. norvegicum),
Dwarf Cudweed (G. supinum) and Heath Cudweed (G. sylvaticum).
Jersey Cudweed (G. luteoalbum) is protected under Schedule
8 of the Wildlife and Countryside Act, 1981.
Only
one dipterous miner, the agromyzid Ophiomyia
gnaphalii, is recorded on Gnaphalium in Britain.
The
agromyzids Liriomyza
sativae and Liriomyza
trifolii, polyphagous pest species of ornamental and vegetable
crops occasionally intercepted at UK points of entry, are recorded
on Gnaphalium. Liriomyza
trifolii has been found under glass in England and Wales.
All populations have been and continue to be eradicated.
Elsewhere
the agromyzids Calycomyza
artemisiae, Chromatomyia
horticola, Liriomyza
sativae, Liriomyza
strigata, Liriomyza
trifolii and Ophiomyia
gnaphalii are recorded mining Gnaphalium.
No
non-dipterous miners are recorded on Gnaphalium in Britain.
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