I received this email this morning from Blightwatch.
http://www.blightwatch.co.uk/A Smith Period alert is in place today for at least one of your chosen postcode area(s). 
A 'Full' Smith Period occurs when the following criteria are met on 2 consecutive days:- 
•   Minimum air temperatures are at least 10°C
•   Relative Humidity is 90% or above for at least 11 hours
I managed to get a short break from my new nursing duties to get my spuds sprayed!
Pleased to see they are growing well.
Does anyone else grow potatoes?