Tomato Plant Leaf Tips Are Turning Black
I have some Tomato plants that I am trying to grow, but I have noticed that the leaf tips are turning a dark brown to black. There is no insect problem other than the average garden insects, but nothing is really attacking the plant that I can see.
I don't really want to pull the tomatoes off yet, so does anyone know what is causing this, or how I can help the plant out?
Thanks for all your help everyone...