Amazon has the BioAdvanced All-In-One Rose and Flower Care I Granules for Insects (4 lbs) for $9.49 with free shipping on $35+ or with Prime (extra 5% off for 5+ subscribe and save orders).

Kills Japanese Beetles, Aphids, Leafhoppers, and other listed pests, and provides systemic rainproof protection lasts up to 6 weeks. Customers usually keep this item.