What Might These Be For Diseases?

Question

first appeared three weeks ago, different plants with different VERY strange symptoms

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Answer 1

This appears to be Xanthomonas Bacterial Speck. Treating should be done with a copper based fungicide. Be sure to follow all instructions, very carefully, as this is a toxic substance. This article will help:

https://www.gardeningknowhow.com/garden-how-to/info/what-is-copper-fungicide.htm

This article will help you to grow tomatoes to their potential:

https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-guide.htm

This link will take you to a free ebook that you can download on the subject of tomatoes:

https://blog.gardeningknowhow.com/ebooks/essential-guide-to-growing-tomatoes/