Not necessarily. You sunflowers are infested with chrysanthemum lace bug https://news.aces.illinois.edu/news/lace-bugs-sunflowers
Check and see if the infested leaf is being controlled by ladybug and green lacewing larvae (black/orange or black.grey "alligators-like") -- or by hover fly larvae (tiny yellow green maggot/slug-like) If not, I would just put a plastic grocery bag over the badly infested leaf and clip it off to discard.
Shot holes in the tomato leaves could be flea beetles. Also check for whiteflies.
That last photo above with someone holding the tomato leaf -- are the affected areas of the leaf thin and papery? I was noticing tomato leaf miner damage/infestation on some of my tomato foliage today. When advanced to the point that the leaf miner caterpillar has already emerged and dropped out the leaf, the damaged part turns brown....