Because each type of plant is a different type of insect magnet it is up to us to use plants which cancel out the bugs by using at least one predator attractor plant for type of attacker on a near by plant.
So following is a list of aphid predators.
If we place plants which attract these predators around the peppers then the aphids will be gone for good.
Hoverfly larvae (Syrphidae) a number of species particularly in the Syrphinae i.e. Syrphus ribesii and Episyphus balteatus.
Aphid Midge larvae (Cecidomyiidae) i.e. Aphidoletes aphidomyza;
Flower Bugs (Anthocoridae) i.e. Anthocoris confusus, some Anthocoris species live and feed on only one genus of aphids, i.e.
Anthocoris gallarum-ulmi feeds only on Schizoneura sp. on elms.
Lacewings (Neuroptera) i.e. Chrysoperla carnea. Lacewings normally only eat aphids as larvae but some adult Hemerobiidae will take aphids.
Chamaemyiidae, Leucopsis spp. larvae.
Chloropidae, Thaumatomyia spp. larvae, specialise on root aphids.
Phoridae, Phora spp. larvae, specialise on root aphids.
Solitary Wasps, Specidae, Passaloecus spp. the adult females stock their cells of their larvae with aphids.
Parasitic Wasps, Parasitica, there are many of these and some are specialists on aphids and some even on only one genus some examples are the Braconids (Braconidae) Monoctonus pseudoplatini and Trioxys cirsii and the Aphelinid (Aphelinidae) Aphelinus flavus all on the Sycamore Aphid Drepanosiphon plantanoides. Other examples are the Braconids Xenostigmus bifasciatus on Cinara spp., Ephedrus californicus on the Pea Aphid Acyrthosiphum pisum, Aphidius sonchi on the aphid Hyperomyzus lactucae and Aphidius nigripes on Macrosiphum euphorbiae.
Facultative Predators and Parasites
There are many predatory insects which will eat aphids if given the chance these include, Earwigs (Dermaptera), Bush Crickets and Katydids (Orthoptera) especially in the early instars, the Hemipterans, Damsel Bugs (Nabidae) and Mirid Bugs (Miridae), the Coleopterans, Ground Beetles (Carabidae) and Rove Beetles (Staphylinidae), the Dipterans, Stilt Legged Flies (Micropezidae) and various members of the Dolichopodidae, Empidae and the Hymenopterans Ants (Formicidae) and Wasps (Vespidae). Apart from these aphids are also consumed by various Spiders (Araneae) and Harvestmen (Opilones).
A company online dedicated to beneficial insects- they will know for sure what plants to put around peppers and be able to supply.
Green Lacewing Larvae feed primarily on soft-bodied garden pests - primarily aphids. The larvae are a natural enemy of aphids but also feed on other garden pests including mites and pest insect eggs...
http://www.thebeneficialinsectco.com/green-lacewing-larvae.htm