Get up to 30 days of insect protection with the BioAdvanced Dual Action Rose and Flower Insect Killer. The dual action formula kills listed insects on contact and protects against new infestations for up to 30 days. The insect killer controls aphids, caterpillars, whiteflies, Japanese beetles, and more. It can be applied to roses, flowers, and even houseplants. For best results, move the houseplants outside, spray them, allow them to dry, and then bring them back inside. The rainproof protection creates a protective barrier on the outside of the plant in just one hour. As the spray is absorbed into the plant, the effectiveness of the product cannot be washed away by rain or irrigation. No mixing or measuring; the ready-to-use sprayer is perfect for quick application. BioAdvanced Dual Action Rose and Flower Insect Killer measures 24 Oz. and treats up to 34 plants.