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Message: <blockquote data-quote="BDub" data-source="post: 157953" data-attributes="member: 448">[FONT=&quot] The occurrence of the disease is dependent upon a number of environmental conditions, especially those that affect the supply of water and calcium in the developing fruits. Factors that influence the uptake of water and calcium by the plant have an effect on the incidence and severity of blossom end rot. The disease is especially prevalent when rapidly growing, succulent plants are exposed suddenly to a period of drought. When the roots fail to obtain sufficient water and calcium to be transported up to the rapidly developing fruits, the latter become rotted on their basal ends. Another common predisposing factor is cultivation too close to the plant; this practice destroys valuable roots, which take up water and minerals. Tomatoes planted in cold, heavy soils often have poorly developed root systems. Since they are unable to supply adequate amounts of water and nutrients to plants during times of stress, blossom end rot may result. Soils that contain excessive amounts of soluble salts may predispose tomatoes to the disease, for the availability of calcium to the plants decreases rapidly as total salts in the soil increase.The bottom line is watering is the cause. I try to water on a regular basis but this summer with no rain and high temps it has been circus. Three varieties of Romas are all having problems.   I am raising Pink Berkley Tie-Dyes and Mariannas Peace for eating. Neither have any problems.  The Berkley tomatoes look really good.  They may become a preferred variety. [/FONT]</blockquote>

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