Whats going on when the leaves roll up lengthwise? Is it a virus?
Will it spread? C.S.: If your plants are green and otherwise normal looking, don’t worry about virus. The leaf roll you describe usually turns out to be the plants’ response to stressful conditions — cold, drought or heat. By rolling their leaves, plants expose less of themselves to the stress. When conditions improve, the leaves will unfurl. Q: What causes flattened, leathery, black calluses on the ends of the fruits? C.S.: That’s blossom end rot. It’s at the blossom end of the fruit, but it’s not really a rot. Blame calcium deficiency in the fruit and uneven soil moisture for the problem. If you haven’t limed in a few years, do so this fall in the area where you’ll grow tomatoes next year. In the meantime, try to keep your soil evenly moist. A season of swings between wet and dry soil greatly aggravates the condition. Q: How can I prevent or reduce cracking and splitting of my tomatoes? C.S.: Keeping soil moisture even, the same strategy you employ to reduce blossom end rot, should