Out of curiosity, did you pull up and discard the old tobacco roots? Tobacco pests and diseases can over winter in the old tobacco refuse and roots. I pull mine up and burn them.
One more thing I've learned this year as a first time grower, and this is by far the most important one, NEVER try to smell the tobacco seds up close. For next year i am not going to need a backyard or a garden, they gonna grow out of my nose.
We discuss any variety of tobacco, as well as numerous approaches to growing, harvesting, curing, and finishing your crop. Our members will attempt to provide experience-based answers to your questions.