[brianc]

Hi all.
        I am going on holiday in September which is 21 weeks my main crop potatoes have been in the ground,
        if shortly before I go I lift a root and the potatoes are ready for lifting would it be advisable to cut the
        foliage off in case of blight? I will be away three weeks.

[mumofstig]

Sounds a good plan to me.

[Goosegirl]

Blight can swiftly decimate crops so I agree with MOS. At least you will get a crop.