Tomato Transplants Wilted and Died. Disease?

Q. Last weekend I started putting some tomatoes into
raised garden beds. I had started these from seed about 8 weeks ago,
transplanted them once into 20 oz plastic cups after four weeks, and hardened
them off for a week before putting them in the ground. The were 4-6 inches
tall. They went into good topsoil and I
fertilized them lightly with Miracle Gro for tomatoes. Within about five days
they started wilting from the bottom up and two are completely dead. I’ve noticed white lesions on several of the stems.
Photos attached. Could this be blight? Is there a chance I overfertilized? I
haven’t seen any insects on the plants.

 A. I looked at
the pics when you sent them and then ruminated about them and finally had a
chance to get back to you. My reaction was that something had mechanically
damaged the stems of the tomatoes. Mechanical damage can come from insect
feeding, abrasion by wind blow sand, chemical sprays that were caustic to the
surface tissue. This does not look like any common tomato disease that I am
aware of. At this stage in their life tomatoes are so vigorous that diseases
would have trouble getting established unless it was from the soil such as
using “dirty” unsterilized soil for a seedling mix.

But even if that were the case it does not look like one
of the common or even less common soil borne disease of tomatoes (Phytophtora,
Fusarium, Verticillium, Pythium). The picture looks like the problem “attacked”
the plant at the stem a short distance above the soil. One of the pictures
shows these “spots” starting a half inch or so above the soil level.