The Ukip leader said he was making immigration the central plank of his campaign and wants the the chance to grill David Cameron on the issue at the leaders’ television debates later this week.

Standing in front of his new billboard in a pub car park in St Margaret’s Bay, near Dover, Farage moved beyond making a case that immigration puts pressure on wages, schools and hospitals to a more emotional argument that it is changing the culture of the UK.

He said immigration was the number one issue for the electorate in “all the opinion polls”, although some surveys put the NHS first among the concerns of voters.

The poster is a modification of a previous advert showing a single escalator leading up the white cliffs. It bears the slogan: “Immigration is three times higher than the Tories promised.”

Farage said immigration was having an impact on A&E services, GP appointments and primary school places. But he went on to say it was also causing a “change in our communities that has left many people in our towns and cities frankly finding it difficult to recognise the place being the same as it was 10 to 15 years ago.”

He said: “Yes, we are making immigration the central part of our general election campaign linked in to our membership of the European Union.”

Challenged about the economic benefits of migration and its contribution to the economy, Farage said: “Even if somebody argues overall our GDP has grown, there is more to this country and the makeup of communities and our way of life frankly than just GDP figures.”

Asked if he could name any places changed culturally by immigration, Farage said: “Well, we haven’t got time but if we went to virtually every town up eastern England and spoke to people about how they felt their town or city had changed in the last 10 to 15 years there is a deep level of discomfort because when you have immigration at this sort of level then integration doesn’t happen.”

The Ukip leader also gave a new figure – about 30,000 – for how many migrants he would like to see coming to the UK each year. The party previously promised to cap numbers at 50,000 before Farage abandoned the target and said he would like to see it return to normality, or a range of 15,000 to 50,000.

He also emphasised the party’s policy of requiring migrants to have health insurance for the first five years and refusing entry to those with life-threatening diseases.

 “There was a hell of a storm over the Aids thing six to nine months ago but at the moment you can come to Britain from anywhere in the world and be tested and get the drugs for Aids. Those drugs are about £25,000 per year, per person. A vast majority of British people don’t want that expenditure … We all want to be good neighbours and friendly with the people in our street but generally we put the interests of our family first,” he said.

Charlie Elphicke, the Conservative candidate for Dover and Deal, said: “All we’ve seen from Ukip on immigration is chaos and confusion: one minute there’s a cap, then there’s not. Mark Reckless says certain migrants should be repatriated, then Farage says they’re welcome to stay.”

Farage is juggling the demands of fighting a national campaign with trying to win his own target seat of nearby South Thanet in Kent. He has said he will stand down as leader if he fails to take the constituency.

The party is only expected to win a handful of seats but the level of its support could be crucial in deciding the outcome in marginals. It appears to be slipping slightly from around 14% since the beginning of the year but Ukip will be hoping to gain from Farage’s exposure in the leaders’ debate and party political broadcasts.

Source: The Guardian