A giant billboard will be erected to block million-dollar views in one of Australia's smartest coastal towns - to shame the suspected poisoners of a stand of protected trees. Council officials in Noosa, Queensland, believe that at least 20 trees have been killed by residents eager to improve their ocean views. Unable to catch the culprits red-handed, the council has decided to put up the billboard in an attempt to prevent any further pillage to the environment which provides a habitat for koalas and possums. The two-metre-square sign will be erected in front of a row of flats, to deliberately block the views of those suspected of the poisoning. The sign in the seaside town of Little Cove, reads: 'Native trees have been illegally poisoned in this location. These trees belong to the Noosa community.' Locals are outraged at the plan, denying all knowledge of the arboreal assassination of paperbarks and cotton trees. They say the sign will detract from the value of their apartments, some of which are worth up to A$3.5 million (HK$20 million). The council has hired a private investigator to track down the tree killers, and some residents have offered a A$500 reward for information leading to an arrest. Anyone convicted of harming native vegetation faces a fine of A$15,000. Some locals, however, have threatened to take the council to court. David Twigg, the manager of a nearby apartment complex, accused officials of hysteria. 'It's terrible,' he said. 'We're talking to our lawyers about it.'