Answer: I can't tell without looking at the plants, but they may have developed a disease, or you may be overwatering. Daily watering is a little too often. When you keep the soil too wet it can actually suffocate the roots - they need oxygen as well as moisture. Tomato plants in the ground need to be deeply soaked once or twice a week, depending upon weather. Soak the soil, then wait 3-4 days and dig down into the soil to see how moist it is. If it is still damp one inch beneath the soil surface, you won't have to water for a few days. If it is dry, it's time to water. I don't know if correcting your watering practices will allow your plants to recover or if you'll need to get new plants. I hope yours recover!
Q&A Library Searching Tips