Following on from the previous thread about blossom end rot, we are now
finding that those that didn't have BER are splitting across the top. Any
ideas on the cause.

I know BER is reputed to be due to lack of or intermittent watering. I also
think the incredibly hot weather in July had an effect. In previous years
we have always grown our tomatoes in a smallish greenhouse - open doors
either end to create a throughflow of air. Although we still got some BER on
the first trusses, we never had any problems with later ones. This year we
grew them in a very large glasshouse and although all windows and doors were
open, there never seemed to be a cooling flow of air. Despite being watered
3/4 times a day, the BER has been much worse than usual.

Have decided to go back to using the smaller greenhouse next year -
convinced it will make a difference

Jeanne