What is blossom end rot?

Blossom end rot is a cultural problem which affects the blossom end of tomatoes, turning the fruit brownish black. It is caused by calcium nutrition and water imbalance in a plant and aggrivated by soils with high salt content or low levels of moisture. Tomatoes growing in sandier soils are more prone to experiencing blossom end rot. To avoid blossom end rot, maintain even soil moisture and plant varieties not prone to this cultural problem. To learn more about blossom end rot, read University of Nevada Cooperative Extension Carson City/Storey County Extension Educator JoAnne Skelly’s article “Watch for Vegetable Problems.”