I believe you can whip the aphids. You had a pretty heavy infestation...It just might take a while to wipe them all out.
I just had to do another spray for them last week, but only on the container babies. The in-ground plants don't seem to be bothered by aphids. Someone told me not only do the lady bugs eat them, but also the fire ants. And I've got plenty of them in the garden.
Aji Limon are real different from anything else I've ever had, and quite wonderful. Imagine a slice of lemon with the spice of maybe a cayenne, plus the extra fruitiness of the C. baccatum species. Also, a really fun plant to grow...They are way bushier and taller than the C. chinense and C. annuum plants, and seem to be more robust. I'll have some photos up soon.
It looks like I will probably have way more than I can use, so I can send you some fresh pods if you like?