Southern Ag Stop Blossom-End Rot of Tomatoes, 32oz - 1 Quart

It works great. The product really prevents blossom end rot on your tomatoes.

While I do add ground eggshells to my soil, it doesn't help right away. Continue using your eggshells in the garden, but if you notice any blossom end rot to your tomatoes, you need more and it needs to be done yesterday. So grab this and get it into your soil ASAP. The plants will start drinking this up right away and will prevent more of your crops from having to be thrown away. My first tomato of the year showed blossom end rot and by the end of the week I had this in the ground with a new set of eggshells also mixed in. The eggshells do take time, and will still be there for a while after the blossom end rot will have either been absorbed or washed away from watering or rains. Just be vigilant and use this if you see any sign of the rot come back.

We had too much rain then very hot weather. All first tomato's had blossom rot. This product helped but did not stop all the rot.

First three tomatoes this season had severe cases of blossom end rot. After first application the problem went away. As per the instructions, I continued to apply weekly.

My tomatoes were rottening on the bottom and this saved the new tomatoes. I lost a lot of my tomatoes to the rot and next year, I will be sure to use this as soon as I plant. ONly need a tiny bit for a gallon of water.

...but didn't "stop" the problem.

The concentrate is definitely the way to go. It may seem expensive initially but a little goes a long and with a concentrate, you're getting full strength formula rather than diluted, striped down solution as with pricey ready made applications. It's actually much more economical in the long run and you're getting a much higher quality product besides. I was having a terrible time with BER on my tomatoes. Apparently, I didn't adequately supplement my soil with dolomite pre-season. I had to spray twice a week for 3 weeks to really start to see a marked improvement but once it takes hold, this stuff really works. Hopefully, I can cut back to once a week for the remainder of the growing season now that things are under control, we'll see. This rather small bottle of concentrate (32 oz) should last for several seasons on my 5 earthboxes. I am very pleased with the results and would highly recommend to others. Well worth the money. I used this liter (slightly more than 1 quart) hand pump sprayer to apply and it works well for smaller garden areas:https://www.amazon.com/418-One-Hand-Pressure-Sprayer-1-Liter/dp/B000BX4VXI

I think this product will work but it seems once your tomatoes develop this rot problem it’s not an instant cure. It’s a calcium problem. I used the product and put two or three handful of lime around plans. I then watered well. After two weeks slowly getting better. Next year line area well