Q.How To Eliminate blight
tomatos blight
Certified GKH Gardening Expert
Unfortunately, your photo did not come through. Diagnosing tomato diseases will be hard to diagnose without photos, as many deficiencies can appear as disease, and vice-versa.
I would start by testing your soil for deficiencies and pH imbalances. After that, you can begin to diagnose other diseases. Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
This article will give you a thorough run-down on tomato care:
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-guide.htm
If you would like to download a free, comprehensive e-book on growing tomatoes, then follow this link:
https://blog.gardeningknowhow.com/ebooks/essential-guide-to-growing-tomatoes/