Field Report: Spotted Lanternfly Eggs or Moth Cocoons on a Bell Buckle Home?
This week in Bell Buckle, Pest Pro Devin found small clusters along the eaves all around a customer’s home. One possibility gave him pause: a spotted lanternfly egg mass, which Tennessee asks everyone to report. After a closer look, Devin ruled it out. They were moth cocoons. Here’s how he told the difference.
Field Report at a glance
| Where | Bell Buckle, Tennessee (Bedford County) |
| Pest Pro | Devin |
| The call | Small clusters along the eaves all around a home, worse every fall |
| Suspects | Spider egg sacs, moth cocoons, or spotted lanternfly egg masses |
| What we found | Moth cocoons: smooth, silky, with a single brown pupa inside |
| What we did | A thorough treatment to keep the cocoons from developing and discourage moths from laying eggs on the home |
| The takeaway | Lanternfly egg masses look like dried mud and crumble. If you find one, report it to the state. |
What Devin found
The clusters lined the eaves on every side of the house. The homeowner told Devin it happens every fall, and it gets worse each year.
Devin snapped photos and sent them to the rest of our team to get their take. From a picture alone, he had three suspects:
- Spider egg sacs, which are common under eaves in fall
- Moth cocoons, silky cases with a pupa inside
- Spotted lanternfly egg masses, the one nobody wants to find
Why the lanternfly possibility mattered
The spotted lanternfly is an invasive insect that damages grapevines, fruit trees, and hardwoods. The Tennessee Department of Agriculture first confirmed it in the state in 2023. By late 2025 it had been found in Davidson, Wilson, Sumner, Hamilton, Jefferson, Sullivan, and Knox counties, according to the UT Institute of Agriculture.
Females lay their eggs from September through November, on trees and on nearly any flat surface, including house walls, patio furniture, trailers, and vehicles. So a cluster on an eave in October is exactly the kind of thing that deserves a second look. The state asks anyone who finds one to report it.
How Devin ruled it out
Devin didn’t stop at the photos. He took down one of the clusters and opened it up.
| What Devin checked | Spotted lanternfly egg mass | What he found |
|---|---|---|
| Texture | Dried putty or spattered mud that cracks and crumbles | Smooth and silky |
| Color | Tan to gray, like a smear of mud | Silky outer case |
| Inside | Rows of small seed-like eggs | A single brown pupa |
| Verdict | Report to the state | Moth cocoon |
A silky case with one brown pupa inside is a moth cocoon. Not a state emergency, but still something worth handling, since the homeowner sees more of them every year.
What we did
Devin did a thorough treatment to keep the cocoons from developing and to discourage moths from laying eggs on the customer’s home.
Found a suspicious cluster? Here’s what to do
- Take a clear photo and note exactly where you found it, including the county.
- Look closely. Mud-like, crumbly, and tan suggests a lanternfly egg mass. Silky usually means a cocoon or egg sac.
- If it might be a lanternfly, report it to the Tennessee Department of Agriculture through its Report a Pest form.
- Then destroy it. The state suggests smashing egg masses or dousing them with rubbing alcohol.
- Check before you travel. Look over trailers, campers, and outdoor gear for egg masses before moving them, since that’s how lanternflies spread long distances.
- Not sure? Ask your Pest Pro. We’re happy to take a look.
The good news: spotted lanternflies aren’t considered dangerous to people or pets. The concern is what they do to plants, trees, and Tennessee farms.
Fall pests on the outside of your home
Fall is when many insects look for protected spots to spend the winter, and eaves, soffits, and window frames are favorites. Our residential pest control covers the outside of your home where these pests settle, and our pest control is backed by our Whatever It Takes Guarantee. We serve Bell Buckle and Middle Tennessee. Call 615-590-1260 or schedule a free inspection.
FAQs
What does a spotted lanternfly egg mass look like?
It looks like a smear of dried mud or putty, tan to gray, about an inch or two long. Older masses crack and crumble, showing rows of small seed-like eggs.
When do spotted lanternflies lay eggs in Tennessee?
Females lay egg masses from September through November. The eggs survive winter and hatch in spring.
Where have spotted lanternflies been found in Tennessee?
As of late 2025, they had been confirmed in Davidson, Wilson, Sumner, Hamilton, Jefferson, Sullivan, and Knox counties.
What should I do if I find a spotted lanternfly egg mass?
Take a photo, note the county, and report it through the Tennessee Department of Agriculture’s Report a Pest form. Then smash it or douse it with rubbing alcohol.
How can I tell a moth cocoon from a lanternfly egg mass?
Moth cocoons are silky and usually hold a single pupa. Lanternfly egg masses look like dried mud and crumble when scraped.
Sources: Tennessee Department of Agriculture (egg masses, where they’re laid, reporting); UT Institute of Agriculture (egg-laying season, confirmed counties); TDA news release (reporting and destroying egg masses).
