We experience Japanese Beetle, sometimes more so in certain years. This article from Missouri makes a statement that caught my eye:
To deal with the bug, farmers typically spray their plants with insecticides several times a season, killing the Japanese beetle and other insects unlucky enough to be caught in the crossfire. Many of these other insects play a vital role in pollination and controlling other pests like stinkbugs and leaf beetles.
Whenever you use a “contact” insecticide, consider the other beneficial insects that may be affected. Take this into consideration when you make a decision to use “any” pesticide. This comes with a “proper diagnosis” and considering other effective alternatives.