Buy — Aphids

: Some biological control specialists like GrowLiv Biologicals sell "Banker Plant Systems," which include a host plant already populated with a non-pest species of aphid to provide a continuous food source for purchased predators. Understanding Aphids

: These generalist predators target over 60 different aphid species, including Green Peach and Potato aphids . buy aphids

Available at Arbico Organics starting at $60.00 for 1,000 pupae. Also sold at NaturesGoodGuys for $28.45 per bottle. buy aphids

: Best for year-round use in greenhouses and fields against small-bodied aphids. buy aphids

Available at NaturesGoodGuys starting at $26.50 for 500 pupae.

: A well-known natural predator, though some experts recommend caution when releasing them into native populations.