Bob Hobden wrote:
Oddly, all of the potatoes on the allotment seem to have blight, but the
tomatoes, which normally go first, are all up still (not mine, I'm too
nervous to put mine out and they are still hiding in pots in the
greenhouse!)

Yes, that is what has happened to us. Yet I noticed one of the new allotment
gardeners has had half of her Toms destroyed. I sprayed the rest with BM for
her so here's hoping it stops it spreading to the rest.
Is this yet another new strain of blight, because it's usually the Toms that
go first IME.

Could just be that everyone has started using blight-resistant tomatoes.
Asked one guy and he said he took seeds from something on the allotment
last year, so if it survived last year and came true this year, it may
well be a havily blight-resistant.

My allotment-strain is Harbinger, which I /think/ is resistant, but not
strongly resistant, iirc.