Systemic insecticides are the best choice. Diazinon, a non-systemic, is also an option, but larvae can be protected from the chemical within the flower or vegetative buds. Be sure to get good coverage of flower buds. The head, snout, legs, and underside are black. Scouting These weevils feed on all types of roses, especially shrub roses.
Adults feed on rose buds and on shoot tips, resulting in damaged petals and dead shoot tips.
Feeding on the stem below the bud can cause it to bend over. Larvae feed in rose flower buds. There is a single generation each year with adults appearing in June. Control Hand pick adults if few in number. When bothered, adults fall from the plant.