Why are my tomato plants getting brown spots on them?
By Queenb4ever from Forsyth, MO
If you have had a lot of rain this season it will probably be blight. Not a happy site. Any tomatoes you get and bring in wash thoroughly before storing, etc. Unfortunately, if it is blight, you may see it again next year if you plant in the same spot. It affects all the nightshade plants including potatoes.
Brown spots may develop on the tomatoes, as well, as they ripen and sometimes the tomatoes are stunted if there are any at all. The only way to curb it is with copper sulfite powder that you dilute and spray on the plants, but it is very poisonous and expensive. It's the same stuff they put in the lumber that makes it green. (09/03/2009)
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