This disorder results in the decay of tomato fruits on their blossom end. Home gardens not limed in the past 2 to 3 years will need 2 cups of lime for each plant. The lime should be worked into the soil 12 inches deep. N.C. Department of Agriculture, Raleigh, N. C. 27611 for analysis and recommendations. Following soil test recommendations is the best way to insure proper fertilization.
Mulches conserve moisture and reduce blossom-end rot.
In extreme drought, plastic may increase blossom-end rot if plants are not watered. This amount of water should be supplied by rain or irrigation. Extreme fluctuations in soil moisture result in a greater incidence of blossom-end rot. This spray should be applied 2 to 3 times a week, beginning at the time the second fruit clusters bloom. These materials can be mixed with the spray that is used for control of foliar diseases.