My garden is in full swing with 7' tall producing tomato plants.
I have just noticed the bottom leaves on several of my tomato plants starting to die. Leaves are fringed in a burnt brown. Upon asking a local tomato grower and showing him my leaves he said I had the "blight". He told me to spray with "copper" spray to take care of it. He said to soak the leaves affected and he has given me some spray to use. My ?'s....
What exactly is "copper" spray?
Is it safe?
Is there an alternative?
Thanks in advance!!