Tips for bacteria and virus observations?

Nature Talk
6

If you are familiar with a specific selection of garden plants (as individuals, not species), you will be able to spot when changes occur in them that aren’t part of the usual seasonal cycle. Then you can look up on gardening websites what their common names are, and the pathogen that causes them. I’ve tried this with roses in the past, and will be uploading a case of Late Blight from my tomatoes later, a fungus. Viruses were first identified in plants before people, so hopefully you can encounter an ill plant with definitive symptoms.