For burley tobacco farmers in Kentucky and Tennessee, an average crop being forecast is a big relief. A few weeks ago, the crop was on the brink of ruin from extreme heat and drought.Now, tobacco specialists say much of the burley has gone through a growth spurt, thanks to recent rains.Farmers are just beginning to harvest tobacco.University of Kentucky agricultural economist Will Snell says that with a decent curing season, this year's burley crop could fetch higher prices than a year ago.