Lovell, 29, is Cherries manager Eddie Howe's half-brother and is a free agent after leaving Partick. He started his career at Bournemouth, making seven appearances during the 1990s, but has spent the past eight seasons in Scotland.
Symes, 26, spent last season at Accrington and had a loan spell at Bournemouth in 2008, failing to score in five appearances.
Pugh was out of contract at Hereford, who will receive compensation for the 23-year-old winger after he rejected the Bulls' offer of a new deal.
Last month, then-Hereford boss Graham Turner said: "It seems likely that Marc will end up at Bournemouth. The fee will probably end up at a tribunal. They've made a very small offer, which is far, far from acceptable."
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