Reports are coming in Japanese Beetles have been sighted throughout Fairfield County. What can you do? 
Regularly inspect your garden and yard plants for beetles and feeding injury. While numbers might be very low right now, it will not take too long for more beetles to arrive.
Remember that damaged leaves give off a volatile that it turn attracts more Japanese beetles. That makes it important to start management as soon as you see feeding on your plants to minimize injury. Japanese beetles feed for six to eight weeks so it is important to continue management until their numbers decrease. Once they are present in large numbers, managing them becomes more difficult. Most feeding is finished by mid to late August.
Physically removing adults can be a good non-chemical option. Physically removing beetles can be a practical and effective management practice for smaller landscapes or a few plants, especially when only small numbers of Japanese beetles are present. Handpick or knock the beetles into a bucket of soapy water to kill them.
The best time to remove Japanese beetles is in the evening or in the morning when beetles on the plants are still cool and sluggish. However anytime that it can be done is still useful.
In some cases, it is possible to protect plants with fine netting to prevent beetle damage. However, do not cover plants in bloom that require pollination (i.e. fruits) as this will prevent pollinators from reaching them. Instead, handpick beetles until the plant is done blooming and starting to set fruit, then cover it.
Don’t use Japanese beetle traps. Hanging a trap in a home garden is not an effective way to protect plants. And they may attract more insects to your yard. The traps attract beetles using synthetic female sex pheromone and a blend of chemicals with a strong floral odor. They were developed by researchers to monitor for the presence of Japanese beetles so that management strategies could be implemented. While these traps can collect an impressive number of beetles, research at the University of Kentucky has demonstrated that more beetles fly toward the traps than are caught. This usually results in more damage to nearby gardens and landscape plants than would have happened if no traps were present.