Introduced species now cost the Republic €200 million a year in damage and control
Sylvia Reynolds
Her pictures of 1950s Dublin are one of the most popular collections in National Archive
Ragweed, the bane of hay-fever victims, causes half the summer attacks of asthma. It also invades ploughed fields, waysides and wastelands. It’s still rare in Ireland – so root it up before it flowers more widely
Five species of tern make Ireland their summer breeding home and nursery. But only intensive management and protection can stave off their inevitable decline
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