Fighting tomato blight with pennies?

How to fight tomato blight by inserting a copper penny within a stalk in a certain way explained with the close up photo.

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Early Blight of Tomato

The Homestead Survival: Fighting Tomato Blight With Pennies

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If my tomato plants are showing signs of blight, is there a way to save them? I keep plucking off leaves with symptoms but I'm worried there will be no leaves left

17 Gardening ideas outdoor gardens, veggie garden, vegetable garden

Potato and tomato blight Tomato garden, Tomato blight, Veggie garden