tiny black spots

hey guys! Got a couple questions about bugs! Haven’t had any issue with them so far. My indoor plant (pink cookies) is doing great, but as I would expect my outdoor plant (farmers fire) has bugs on it. I’ve seen spiders and flies around it that I’m not worried about, but recently I’ve noticed...

Hi. Im growing some plants outdoors. Some of my trees are getting unhealthy and theyre starting to get these tiny black/purple spots on them and it's spreading pretty fast. My healthy trees don't have any of it tho. Any idea what this is? I recently found out that my soil has been infested with...