I don't know if there's a causal connection, but since I've been using Biostimax^® (spraying leaves a few times a year), the yield is significantly more abundant. Whether it's broccoli, tomatoes, cucumbers, or zucchini. After the hail, apart from a few burst fruits, there was no lasting damage; damaged plants grew and bore fruit again. But it should be added that I garden in a new garden with significantly more sun and better watering than before. And that I manually pick off pests.