For nearly 11 months out of the year we buy tomatoes, squeezing them for ripeness, cringing at the cost and with the first bite telling ourselves "these definitely aren't homegrown." Finally, it's time to harvest these glossy, red globes, but our eyes must be deceiving us: What is that big black lesion on the bottom of my beautiful tomato! Welcome to the world of blossom end rot, a condition caused not by a pest, virus or disease but by environmental...
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