Yellow Leaves on Tomato Plants

Question

I have a heated greenhouse, and this is my first year growing plants in it. My cherry tomato plants’ leaves are turning yellow. I have roma and beefsteak tomatoes growing also but so far they are doing great. There is fruit on the cherry tomato plants, still blooms and producing fruit.

Answer 1

There are a number of reasons for leaf yellowing in tomatoes. This article should help with pinpointing and correcting the cause of yours: https://www.gardeningknowhow.com/edible/vegetables/tomato/yellow-tomato-leaves.htm