"Carolyn, who remembers when growing up on the farm that if frost was expected, especially in late Spring, her father would take lots of old tires to the fields , put them in piles and set them on fire. The black residue would land on the foliage and serve as ice nucleating particles,not known by that name back then, thus protecting the foliage."
The EPA would quickly arrive with a swat team and black helicopters if you tried that today. You would be sorting and saving your tomato seeds in a jail cell.
Ted
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