They have many natural enemies, including ladybugs, lacewings, and some wasps. Ladybugs can be purchased at Bachman's Garden Centers at certain times of the year. To keep the aphid population in check, hand spraying with water will knock the aphids off the plant. Aphids lack the mobility to find their way back to the plant when they've been disturbed. Insecticidal soap, horticultural oils, and other organic methods will control aphids and are not lethal to most aphid predators.
Aphids are susceptible to almost every insecticide.
Be sure to read the entire insecticide label and follow directions for proper application. Inc. All rights reserved.