root aphids in AeroPonics

girls are only 2 weeks old. I noticed 1 single green aphid on one of the tiniest plants.

i read how you treat them systematically with bayer. also azatrol and nematodes.

but i was wondering, because I am so early in and havent noticed any but that 1 aphid

what is the best route to go?

Root Aphids in an aero set up. Does anyone have experience with this that would like to share some wisdom? I have about 60 plants and have noticed some of them showing aphid damage signs. Ive seen a couple, its very early on and these girls need a good start

peace and love