Blight question

I got a touch of blight on my remaining spuds it was not to heavy but enough for me dig the rest of them up and dispose of the leaves. My question is does blight stay in the ground for the next few years, as has been said to me.

 

The good news: Blight does not normally survive in soil and a compost heap which gets up to a high heats will kill blight spores on foliage and tubers

Prevention:
Use only certified seed (next year), and perhaps choose blight-resistant varieties
Rotate crops
Remove every last tuber from the ground, when you harvest
Next year water the soil (e.g. seep hose) rather than sprinkler-watering
Plant only early-maturing varieties - which will mature before blight risk season (next year)
Check the crop daily during July and August, and spray at first sign of infection - also watch out for the announcements of high risk periods
Remove haulms immediately that signs of blight are detected.
If you have blight do not harvest potatoes for two weeks after removing haulms - to help the skin harden, and reduce the risk of transfer of spores to tubers.