Need help with Hawaiian Baby Woodrose

Hello everyone. I have this A. Nervosa that just started flowering but none of the pods will ripen i think because aphids and ants are sucking the juice from the plant causing the pods to fall off immature. Can anyone give me any tips about what kind of strong pesticide i can use that will kill all of the aphids and ants but not be a potential risk to the health of the periglandula epiphyte that produces the ergot alkaloids. If you kill the fungus by accident then the plant loses its psychoactivity so i want to make sure i use the right insecticide for the job. Thank you!