BugClear Ultra Vine Weevil KillerSystemic insecticide compost drench for the control of vine weevil and other pests in pots, hanging baskets and other containers. Dilute the concentrated liquid as recommended on the label and water it on to the compost in the containers. It works in the roots and the compost, where it will protect against vine weevil and other compost dwelling insect plant pests for up to 2 months. Systemic action. As BugClear Ultra Vine Weevil Killer is systemic, it