Hello,

Reducing your current population will help to reduce next year's population. This MSUE article will help you. Early season scouting and removal will also help. Reporting your sightings are also encouraged to assist scientists to know where populations are at. See the MISIN link in the attached article under 'What's Being Done in Michigan".  

"Management options:
As the scarlet lily beetle originates from outside North America, it has few natural enemies that are effective at control. Hand-picking beetles off plants and crushing or throwing in a bucket of water may provide relief if only a few beetles are present. Contact insecticides are the only other option. Products containing permethrin, cyhalothrin, deltamethrin, pyrethrin, spinosad and other insecticides labeled for ornamental use have shown the most effective control. Azadiractin (neem oil) products and insecticidal soaps have also shown some control of young lily leaf beetle larvae. If using an insecticide on flowering plants, read the label to follow directions and avoid exposure to pollinators."