When folk in widely separated parts of the country all have similar problems, there must be a link somewhere.
Discussing the situation, I have concluded that toms do not like the prolonged arid spell with for the UK horribly high temperatures.
The heat was too much for me, and I guess the toms did not cope with the rapid rise in temperatures during the day. Nor did they like the resultant weeks of overcast rain-bearing skies.
If I think back to when I used to help in Dad's greenhouse at home and compare it with the same greenhouse some 30 years later situated here, I've never known such a poor year for toms. Hey ho! Another sign of climate change?