The biggest mistake you can make is to run down to the garden store and pick up one of the popular Japanese beetle traps. These traps seem effective, because they capture a lot of beetles. The problem is, they use the Japanese beetle pheromone to bring them in – and as a result, draw more beetles to your plants than they kill.
The best way to control these pests is to treat your plants with an insecticide. Natural options include insecticidal soap and pyrethrins. Make sure you read and follow the labels on these products. You’ll likely need multiple applications, and the earlier into the invasion, the better your results will be.
