I'm using calcium carbonate I dissolve 2 crushed Tums tablets a mixed with a gallon of water I spray my tomatoes & peppers at least twice a week. Been using it for several weeks and so far so good. I don't know if its as effective as the stuff your using but I'm guessing it costs less and Tums are available most everywhere.

Once again I'm going to give a link for an article I was asked to write quite a few years ago and it's just as relevent today as it was when I wrote it/.

It used to be thought that BER was caused by lack of Ca++ alone but that's turned out not to be true since there are so many other variables that are involved as well.

Once plants start to mature the plants can better handle the various stresses that can lead to BER, both external and internal BER. And that's why almost all BER is found early in the season.

[url]http://www.webgrower.com/information/carolyn_ber.html[/url]

Carolyn

carolyn137, I'll certainly give it a look but when I started container gardening I was warned not to over water as its quite a factor in BER. So between calcium & water I've been able to grow tomatoes & peppers this year without issues. But your article may give me some additional insight on how to best avoid BER.