If the traps work for you, that is great but people should know that they stink before they buy. I have a well. The pump uses electricity. Buckets of water work to flush the toilet in summer outages. My fly trap was knock you over stinky and you could smell it for a distance. If I lived in town I wouldn't use one. Don't put them down low because my dog chewed a hole in the first one I got (nothing new) but the stink was attractive to him. I got them for flies that were in the barn. I think you should catch one of your flies and have it identified. Some of the flies in my garden are Trachinid. They looked like house flies to me before I saw one biting a big hornworm. I am not sure the good flies would be attracted to the stinky trap because some of the good ones like nectar. Here is a link that might be useful: flies

Leafminers. The amount you have is minor. Squish them while still inside their trails.

I know it's a little late, but evidently, a lot of May posts didn't get any replies. Those look like army worms from what I can see.

Looks like green midges (if so they are harmless) but a closer photo of the buggers would be required ... at least for these eyes of mine. ;-)