by Trey Lamkins, Landscape Operations, Kimmel Education and Research Center
Monday, June 23rd, marked the first official Japanese beetle sighting of the season here at Kimmel Orchard and Vineyard.
While beautiful in appearance with their iridescent green and copper wings, Japanese beetles (Popillia japonica) are notorious garden pests that can cause significant damage to a wide variety of plants, including grapes, apples, roses, and many ornamentals. Their skeletonizing feeding patterns can quickly reduce lush foliage to lace-like remnants, weakening the plant and reducing overall vigor and yield.
What we're seeing:
Beetles were spotted on Common Milkweed plants near the northwest side of the property. We are beginning to monitor activity closely across the orchard and gardens. Early detection is key in managing these invasive pests before populations explode later in the summer.

What You Can Do:
- Monitor frequently: Begin checking susceptible plants daily.
- Handpick early: In low numbers, beetles can be controlled by removing them manually in the early morning.
- Avoid spraying during pollinator activity: If treatments become necessary, apply in the evening when bees and other beneficial insects are not active.
- Report your sightings: Knowing where and when beetles are appearing can help with local pest tracking and management efforts.
Additional Resources:
For more tips and guidance on identifying and managing Japanese beetles in your landscape, check out: Backyard Farmer – Japanese Beetles (UNL IANR)
Get Involved: Join Us This July!
Pollinator Workshop | July 16th | 9:00 AM - 12:00 PM | Kimmel Orchard & Vineyard
Join us to learn how to support pollinators, select native plants, and create thriving habitat in your own backyard. The workshop will feature educational sessions, youth activities, and a UNL Bee tour. Perfect for families, educators, gardeners, and anyone who care about conservation.
Register here: Pollinator Workshop RSVP