John Swinney, leader of the SNP, has hit out at his opponents over spending, accusing Labour, the Conservatives and the Lib Dems of all planning to cut Scotland's share of government resources.

Speaking in London on Sunday, Swinney said: "In Scotland, all of the London parties pretend to support Scottish spending levels. But the reality is that they have split loyalties, and take their orders from London. Day after day, Westminster politicians attack Scottish spending, without a cheep from their counterparts in Scotland."

The SNP published a dossier of quotes from Tory, Labour and Lib Dem politicians, in which they allegedly call for Scotland's share of spending on public services to be cut.

"Despite the fact that Scotland will generate a budget surplus of £7.7 billion over last year and this year, Labour, Tory and Lib Dem politicians want to grab even more of Scotland's resources," said Swinney.

He added that if press reports that John Prescott is set to become Tony Blair's "Cabinet enforcer" after the election are true, the deputy PM would be in a "powerful position to continue his attack on Scottish spending".

He urged voters in Scotland to back his party "because Westminster only ever pays attention to Scotland when SNP support is on the rise."

The quotes which the SNP claim show that other parties plan to cut Scottish spending include:

• "I think the formula [Barnett] is discriminatory. In Scotland, the formula look fair and generous but that is because it is generous to Scotland. Fromour point of view in the Northern region, it looks less than fair and generous." - Labour's Peter Mandelson, Scotland on Sunday, 29 April 2001.

• "Does he (Scottish Minister) agree that, when the next needs assessment is considered, there will no longer be any excuse for English taxpayers having to subsidise Scotland to the tune of £1,000 for every man, woman and child in Scotland?" - Conservative Theresa Gorman, Hansard, February 23 1999.

• "Does the Minister (B. Hughes) recognise that the most disadvantaged regions need a higher level of public expenditure on essential services tocompensate for that disadvantage and become economically successful? Scotland has done that to a significant extent through the Barnett formula.Does she recognise that such a formula, if applied through the English regions, and the creation of a mechanism to set it up, could make a profound difference...Are the Government prepared to reform the Barnett formula so that all parts of the country - Scotland, Wales and the regions of England -have a basis that reflects their needs." - Liberal Democrat Alan Beith, Hansard, Regional Affairs Standing Committee, May 10 2001.