The picture is fuzzy so we can’t see the powdery stuff clearly. What we can see is that the damage is primarily on the edges, suggesting possible leaf scorch, a condition caused by underwatering. However, the leaf veins are also darker than the leaf. This condition can be caused by several issues, including iron deficiency in the soil or the beginning of fusarium wilt, type of tomato fungus.
You have several options. Take one of the damaged leaves to a local nursery or the extension agency for diagnosis. However, if the problem is fusarium wilt, there is no cure. The entire plant must be removed. If it isn’t f. wilt, this plant is already stressed and may take some time to recover, if it can recover. You may want to start over with a new plant. It’s still early in the growing season so a healthy plant would have enough time to set fruit. If you choose to start over, here’s some really important and helpful information on growing tomatoes so you can get off to a good start! – http://www.ext.colostate.edu/mg/Gardennotes/717.html
Leave A Comment