What are some effective methods to reduce the Japanese beetle population?

Question: The Japanese beetle population my large perennial beds has been increasing greatly every year despite hand-picking and using Captain Jack’s Deadbug Brew Spray (sparingly and in the evening, as I’m concerned about harming bees). Are there other methods that would be more effective and/or also reduce the population?  Answer: Jonathan Foster, Community Education Assistant read more What are some effective methods to reduce the Japanese beetle population?