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Weird that I didn't see any of them. So much free food! :D

Neem oil seemed to work on them.

I'll keep it in mind when they show up on my plants. Thanks :)

I only used it because I didn't want them attacking my peppers and I didn't want to spray pesticide on them then eat it later on the peppers. It also worked well for reducing the aphids. Sadly my mantis eggs didn't hatch, I was hoping to have some preying mantis guardians to eat any remaining aphids but the ones I got from the store were duds and didn't hatch.

I have been using neem oil for mealybugs on cacti and trips on orchids. Seems to be working well if used regularly. I will sell the idea to mum - she keeps getting aphids on roses.

In fact the predator there is the bush cricket. I also get hoverflies that come to eat the aphids and that little wasp-like creature in one of your pictures could be a predator too

Not enough of them I guess :(