Tomatoes turned White and Died - Knowledgebase Question

Willow Springs, MO
Avatar for breeden
Question by breeden
May 29, 1999
I used black fabric for the first time when I transplanted my tomatoes to the garden. I have always used Miracle Grow in the hole when I transplanted them. This time I also used a tablespoon of Epsom Salts because I had heard it was good for tomatoes.

My tomatoes turned a whitish color and died. What could cause this problem, the black fabric or the Epsom Salts or a combination of both?

Answer from NGA
May 29, 1999
Epsom salt (magnesium sulphate) is used as a source of magnesium and if applied, is used as a side-dressing or foliar spray as needed during the growing season. Certain crops, including peppers, tomatoes and roses, sometimes benefit from the additional magnesium. Rarely is there a deficiency in soils that would require the supplementing of these nutrients and, if you're using other complete fertilizers, you're already adding magnesium and sulfur.

As you probably know, the black fabric is used to warm up the soil so that tomatoes can get a jumpstart, since they prefer a warmer soil to thrive. Did you mix the fertilizer and Epsom salts well into the soil mix before planting? Sometimes too much salt can burn sensitive plant roots and the whole plant dies. Was the soil consistently moist? Tomatoes are extremely moisture sensitive, so if the soil dried out down where the roots are, and the fabric contributed to the hot, dry soil, transplants could easily die before establishing a root system. I hope this information is helpful--if you hurry you should be able to get some more transplants into the ground! Try just one modification at a time, so you'll know what works and what doesn't! Good luck.

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