On Thu, 19 Jun 2003 15:23:11 -0400, "len" wrote in
rec.gardens.edible:

My question is; how can I prevent blossom end rot in my tomatoes? Is there
any mineral supliment I can use?

Calcium will help, but it might not prevent the BER. Even if BER does set in it
will likely correct itself when the rain finally stops.

See http://www.ianr.unl.edu/pubs/horticulture/nf43.htm for an excellent article.
--
Gardening Zones
Canada Zone 5a
United States Zone 3a
Near Ottawa, Ontario