How to Kill Yellow Lady Bugs
- 1). Close all windows and seal them off. If your windows are older and have a wooden frame you will need to caulk any gaps in the window with window sealing caulk.
- 2). Spray Cyonara 9.7 or Demand CS bug spray around your window frames and on your windowsills. These sprays do not break down easily and they don't leave a stain, so they can serve as a great chemical to prevent ladybugs from trying to gain access through windows.
- 3). Dust the outside perimeter of the house with diatomaceous earth. Diatomaceous earth is made from fossilized algae and serves as a natural pest deterrent. Mixing this with decorative mulch or potting soil will help to ensure pests like ladybugs do not attempt to enter the house.
- 4). Spray the side of the house with a high-pressure hose to remove a large number of ladybugs.