Ready-to-use. Kills on contact. Lasts up to 30 days. Rainproof protection. Bayer Advanced Garden Rose & Flower Insect Killer provides up to 30 days protection with a single application. Now keeping your roses and flowers insect-free is easier than ever. Quick facts: Kills insects on contact. Keeps killing for up to 30 days. Ready-to-use…no mixing, no measuring. Kills aphids, Japanese beetles, leafminers, whiteflies and other listed pests. For residential use only.