Does an aircraft with higher aspect ratio wings produce more wingtip vortices in a turn than one with lower aspect ratio wings?
Easy to follow diagramFor two wings with the same area, the higher AR wing will produce LESS wingtip vortices simply because there is not as much area close to the wing tip that can be affected by the vortices. 

The Ta-152H has a wing area of 253 ft^2 while the P-51 has a wing area of 235 ft^2

With those area's being so close together (7% apart) while the AR's are very different (35% apart) it would be a safe assumption to say the Ta-152H produces LESS wingtip vortices than the P-51.