In message
Pam Moore wrote:

Today I have found some of my tomato plants have blight. So much for
spraying 3 times with Bordeaux mixture! This is the 5th year running
I've had blight but at least this year I have had some fruit.

After 2 years blight I washed the canes with Jeyes Fluid (advice from
Which) and this year no problems (yet). Could canes be the source of
transmission in your case?

--
CTC Right to Ride Representative for Richmond upon Thames