Tomatoes can be negatively affected by water. Water on the fruit and leaves can lead to disease. The timing of watering is of equal concern because certain diseases known to infect tomatoes are a larger threat during the evening, when temperatures are cooler.
Watering at night can increase the probability of your tomato plant having problems with disease. Tomato diseases that are certain are the biggest threat whenever there are conditions and temperatures that are mild. This scenario can be created by watering at night.
It can negatively affect production and growth when tomato plants get water. Temperatures are cooler and less water will evaporate from the soil. In case you don’t take the evaporation rates into consideration the incidence of over-watering cans increase.
Following a warm day, leaves of a tomato plant may start to show signs of wilting. If allowed to sit overnight at the cooler temperatures, the leaves will perk up. them, When the leaves have not perked up by morning.
When to Water
Watering early in the day is the most appropriate for tomatoes. It allows time for the plants to dry out before the day and reduces the amount of water lost from evaporation. This is also the practice for preventing diseases on your tomatoes.