Potato blight can devastate a crop
New potatoes are not a concern as they have produced the tubers and will be eaten shortly. But main-crop potatoes have not started to bulk up, and an attack of potato blight now may mean that there are no potatoes to harvest.
Further information on potato blight can be found in the following links:
Potato Blight on Unprotected Shoots
A Beaumont Period & a Smith Period


