While in the "Reading Room" I noticed a statement in "The New Seed Starters Handbook" by Nancy Bubel, she claims you get blossom drop if it's hot and Dry. I've had quite a few days over 100F I don't think in a 120 plants That I have lost more than a dozen blossoms. But the Humidity has also been brutal. I did get some leaf drop, but I noticed that my habbies are growing new branches where the leaves dropped. Byron