I have 6 tomato plants and all but one is healthy. It has some yellow leaves and the whole plant is droopy. The plant has a lot of tomatoes on it. I cant' understand why just this one is dying. I have fed them and watered them. I have planted marigolds around the as well. So what could be wrong?

Some varieties are susceptible to tomato diseases while others have resistance to disease. Tomato diseases are listed on the little plant labels that come with them like VFFNT yours sounds like it might have N or T. T is tobacco mosaic which causes the leaves on a well grown plant to turn yellow and fall off. It can be controlled by planting a resistant variety, by cleaning up all tomato litter and dead plants in the fall and removing these, don't compost it, or by planting in new soil that hasn't had tomatoes or nightshade family crops in it before. Even petunias or flowering tobacco (nicotinia) carry the T virus and could infect your tomato. There is no cure for a plant already affected

It might not get as much sun light as the other plants. Use some fetrilizers on the one that's dying

Some varieties are susceptible to tomato diseases while others have resistance to disease. Tomato diseases are listed on the little plant labels that come with them like VFFNT yours sounds like it might have N or T. T is tobacco mosaic which causes the leaves on a well grown plant to turn yellow and fall off. It can be controlled by planting a resistant variety, by cleaning up all tomato litter and dead plants in the fall and removing these, don't compost it, or by planting in new soil that hasn't had tomatoes or nightshade family crops in it before. Even petunias or flowering tobacco (nicotinia) carry the T virus and could infect your tomato. There is no cure for a plant already affected


:D I did have my tomato plants around my petunias. I bought my plants from a farmer along with my flowers. I thank you so much for your help, now I know what to look for
:D