Pest Control During Pregnancy

🚫 High Concern (Avoid Entirely)

• Organophosphates — Chlorpyrifos, malathion, diazinon. Associated with developmental effects in prenatal studies. Avoid entirely during pregnancy.
• Carbamates — Older chemistry still found in some products. Similar concerns to organophosphates.
• Foggers / bug bombs — Coat all surfaces with insecticide residue. No safe level of exposure has been established for pregnant women from fogger use.
• DEET >30% concentration — Limited data; 10–30% DEET considered cautiously acceptable by some OBs, but discuss with your physician first.

⚠️ Use With Caution

• Pyrethroids — Bifenthrin, permethrin, deltamethrin. Limited human data on pregnancy outcomes but widely used. If needed, apply outdoors only and avoid direct exposure during application.
• DEET (lower concentration) — 10–30% DEET products are generally considered acceptable for limited use by most OBs, but confirm with your physician.
• Any insecticide indoors — Even lower-concern products should ideally be applied by another person while the pregnant person is away from home for several hours.

Exclusion (Zero Chemical Exposure)

Sealing entry points — door sweeps, pipe gap sealing, weatherstripping — eliminates pests without any chemical exposure. The absolute safest approach during pregnancy. Should be the first strategy pursued before any chemical treatment is considered.

Mechanical Traps

Snap traps for rodents, sticky traps for insects, and glass jar traps for fruit flies involve zero chemical exposure. Have another person check and reset traps to avoid handling pest remains during pregnancy.

Steam Treatment

Dry steam at 212°F kills cockroaches, bed bugs, and eggs with no chemical residue. Safe during pregnancy when applied by another person. The treated surface is safe immediately after cooling.

Gel Baits (Away From Pregnant Person)

Ant and cockroach gel baits placed by another person in inaccessible locations while the pregnant person is out of the home represents the lowest-chemical-exposure approach to active infestations. Stay away from treated areas for several hours after application.

Boric Acid in Inaccessible Areas

Applied by another person inside wall voids and other completely inaccessible areas while you are out of the home. Very low mammalian toxicity but avoid direct exposure to the dust during application.

Professional PCO With Disclosure

Always disclose your pregnancy to any pest control company. Experienced PCOs can select lower-risk products, apply them only in exterior and inaccessible areas, and time treatments for when you can be away from home for a full day.

✅ Generally Considered Safe

• DEET (10–30%) — CDC recommends DEET for pregnant women in areas with Zika, West Nile, or malaria risk. Use as directed; wash off when back indoors.
• IR3535 20% — Considered safe during pregnancy by most OBs. Does not cross the placenta.
• Permethrin on clothing — Applied to clothing only (never skin). Generally considered safe during pregnancy for repelling ticks and mosquitoes.

⚠️ Caution / Limited Data

• Picaridin — Not well-studied in pregnancy. Some OBs consider it acceptable; confirm with yours.
• OLE (Oil of Lemon Eucalyptus) — Not recommended during pregnancy or for children under 3.
• Essential oil repellents — No safety data for pregnancy and generally ineffective. Not recommended.