Carnivorous ladybird beetles won't try to eat a plastic flower so its less likely to harm them than it would someone like a bee, but there won't be many aphids to eat from one either.

Speaking of bees, this week I’ve seen many dead ones in my garden and along a nearby road. I think a neighbor or the local fumigation services might be using something that kills them. There are also fruit fields nearby, so it could be the herbicides… I live next to a natural park, but the surrounding areas are agricultural. I don’t know how to find out more, and the neighbors don’t seem to care. Maybe local beekeepers know something… This situation really upsets me

Don'f forget insecticides (notably neo-nicotinoids) used on agricuiltural fields. These are just as deadly to bees as to the targetted insects

I'll find out