English voters have grave concerns over SNP power plan . Half believe Ms Sturgeon will have the upper hand over Ed Miliband . Ukip has been gaining support from former Labour voters and not Tories . The poll shows Nicola Sturgeon 's are more interested in independence that the economy . Survation interviewed 1,004 people online on Friday and Saturday .
English voters have grave concerns over Nicola Sturgeon 's power plan . Half believe Ms Sturgeon will have the upper hand over Ed Miliband . Ukip has been gaining support from former Labour voters and not Tories . The poll shows SNP are more interested in independence that the economy . Survation interviewed 1,004 people online on Friday and Saturday .