Pests and pest control in Ogden, UT

Pests to know in Ogden

Subterranean termites · Japanese Beetle · Brown Marmorated Stink Bug · Elm Seed Bug

Why each one matters here is cited in the sections below.

Termites in Ogden

Utah State University Extension reports that termites can be found throughout Utah but are most common in the state's southern counties.^[1]

Invasive species reported here

• Small Japanese beetle populations have been found in Weber County and nearby counties in recent years, prompting the Utah Department of Agriculture and Food to declare a Plant Pest Emergency and pursue eradication.^[5]
• The brown marmorated stink bug, first found in Utah in 2012, is established in Weber, Davis, Salt Lake, and Utah counties, according to USU Extension.^[8]

Climate

Central Ogden (ZIP 84401) is in USDA plant hardiness zone 7a, where the average coldest winter night is 0 to 5°F.^[10]

Public agencies that handle pests

• The Weber Mosquito Abatement District regularly traps several mosquito species, and it tests pooled samples of Culex tarsalis, Culex pipiens, and Culex erythrothorax for West Nile virus.^[2]
• Weber Mosquito Abatement District can supply mosquitofish free of charge for closed-system ponds, such as ornamental ponds, that do not connect to a natural waterway and sit above the 100-year flood line.^[2]
• The Weber-Morgan Health Department works with the Weber Mosquito Abatement District to track mosquito activity through the season and partners locally to reduce mosquito numbers when needed.^[4]

Local rules and responsibilities

• Under Weber Mosquito Abatement District policy, residents who want their property excluded from night-time truck spraying must renew their No Spray Zone application every year.^[3]
• Utah's Japanese Beetle Quarantine rule, in effect since 1993, regulates imports such as soil, sod, and nursery stock that could carry the beetle into the state.^[6]

Hiring a licensed company

In Utah, anyone applying pesticides for hire, where customers are billed, needs a commercial pesticide applicator license from the Utah Department of Agriculture and Food.^[7]

Licensing agency: Utah Department of Agriculture and Food — Pesticide Program^[11].

See also how to check a pest control license.

Free local help

USU Extension describes the elm seed bug as a major nuisance pest along the Wasatch Front that enters homes in large numbers, with peak activity from mid-June through August.^[9]

Through the year

Spring

USU Extension notes that homeowners usually miss subterranean termite feeding damage but do notice winged swarmers in spring, mud tubes, or droppings near wood.^[1]

Spring to Fall

USU Extension says brown marmorated stink bug adults gather on homes and buildings from late fall through spring, sheltering indoors, under eaves, and in attics.^[8]

Sources

1. Utah State University Extension and Utah Plant Pest Diagnostic Laboratory, “Subterranean termites (ENT-08-08).” extension.usu.edu/planthealth/uppdl/files/factsheet/sub-termites09.pdf (accessed 2026-10-06)
2. Weber Mosquito Abatement District, “Integrated Mosquito Management.” www.webermad.org/education/integrated-mosquito-management/ (accessed 2026-10-06)
3. Weber Mosquito Abatement District, “No Spray Request.” www.webermad.org/services/no-spray-request/ (accessed 2026-10-06)
4. Weber-Morgan Health Department, “Weber-Morgan Health Department Announces Human Case of West Nile Virus.” www.webermorganhealth.gov/2026/07/30/weber-morgan-health-department-announces-human-case-of-west-nile-virus/ (accessed 2026-10-06)
5. Utah Department of Agriculture and Food, “Weber County Japanese Beetle Eradication Project.” ag.utah.gov/wp-content/uploads/JB-Mailer-Weber-Co-26-V1.0.pdf (accessed 2026-10-06)
6. Utah Department of Agriculture and Food, “Japanese Beetle Eradication.” ag.utah.gov/plant-industry/insect-and-pest/japanese-beetle-eradication/ (accessed 2026-10-06)
7. Utah Department of Agriculture and Food, “Pesticide Licenses and Permits.” ag.utah.gov/pesticides/pesticide-licenses/ (accessed 2026-10-06)
8. Utah State University Extension, “Brown Marmorated Stink Bug.” extension.usu.edu/planthealth/research/brown-marmorated-stink-bug (accessed 2026-10-06)
9. Utah State University Extension, “Elm Seed Bug.” extension.usu.edu/planthealth/research/elm-seed-bug (accessed 2026-10-06)
10. USDA ARS and PRISM, via phzmapi.org, “Plant hardiness zone for ZIP 84401 (2023 USDA map data).” phzmapi.org/84401.json (accessed 2026-10-06)
11. National Pesticide Information Center, “State Pesticide Regulatory Agencies.” npic.orst.edu/reg/state_agencies.html (accessed 2026-10-06)