Pests to know in Appleton
Termites in Appleton
UW-Madison entomologists describe termites as quite rare in Wisconsin, occurring only in isolated pockets, with damage progressing slowly compared with southern states.[1]
Invasive species reported here
Appleton found its first emerald ash borer-infested tree in February 2015, though the city had already stopped planting new ash on street terraces and in parks in 2003.[5]
Pests local experts flag
- Appleton health officials warn that bed bugs hitchhike on furniture, bedding, luggage and clothing, and can survive several months to a year without feeding.[2]
- The Appleton Health Department singles out non-native Norway rats, roof rats and house mice as rodents that become pests by infesting homes and threatening public health.[2]
Climate
Central Appleton (ZIP 54911) is in USDA plant hardiness zone 5b, where the average coldest winter night is -15 to -10°F.[9]
Public agencies that handle pests
- The Appleton Health Department notes that bats caused most human rabies cases in the U.S., and advises capturing and testing any bat found where a person may have had contact.[2]
- Outagamie County Public Health, headquartered in Appleton, says nearly all tick-borne illnesses in Wisconsin come from the deer (blacklegged) tick.[3]
- Lyme disease is Wisconsin's most common tick-borne illness, and the ticks that spread it live in every county in the state.[4]
Hiring a licensed company
Wisconsin requires commercial pesticide application businesses, including sole proprietors, to be licensed annually, and each individual applicator must be certified and licensed each year.[6]
Free local help
- UW-Madison Extension's Outagamie County office helps residents identify plant-feeding insects, learn their control methods and find safe, effective pest management approaches.[7]
- UW-Madison Extension says second-generation boxelder bugs gather on sunny house walls in September and October before moving indoors to overwinter in attics and wall voids.[8]
Through the year
- Winter to Fall
- Appleton's health department advises against excluding bats from homes from May through August, when young bats cannot fly; fall and winter are the best times to bat-proof.[2]
- Spring to Fall
- According to Outagamie County Public Health, ticks are most active in Wisconsin from May through November.[3]
Sources
- University of Wisconsin-Madison Department of Entomology, “Wood-attacking insects.” insectid.wisc.edu/category/wood-attacking-insects/ (accessed 2026-10-06)
- City of Appleton Health Department, “Environmental Safety.” www.appletonwi.gov/government/departments/health/environmental_health/environmental_safety.php (accessed 2026-10-06)
- Outagamie County Public Health, “Tick kits news release.” www.outagamie.gov/files/assets/county/v/1/hhs-ph/documents/06302023-tick-kits-news-release.pdf (accessed 2026-10-06)
- Wisconsin Department of Health Services, “Lyme Disease.” www.dhs.wisconsin.gov/tick/lyme.htm (accessed 2026-10-06)
- City of Appleton Public Works, Forestry Division, “Emerald Ash Borer.” www.appletonwi.gov/government/departments/public_works/forestry/emerald_ash_borer.php (accessed 2026-10-06)
- Wisconsin Department of Agriculture, Trade and Consumer Protection, “How to Comply: Structural Pest Control.” datcp.wi.gov/Documents/HTCStructural.pdf (accessed 2026-10-06)
- UW-Madison Extension Outagamie County, “Horticulture.” outagamie.extension.wisc.edu/horticulture/ (accessed 2026-10-06)
- UW-Madison Extension, “Boxelder Bugs.” hort.extension.wisc.edu/articles/boxelder-bugs/ (accessed 2026-10-06)
- USDA ARS and PRISM, via phzmapi.org, “Plant hardiness zone for ZIP 54911 (2023 USDA map data).” phzmapi.org/54911.json (accessed 2026-10-06)
- National Pesticide Information Center, “State Pesticide Regulatory Agencies.” npic.orst.edu/reg/state_agencies.html (accessed 2026-10-06)