How do I safely use pesticides at home and choose a reliable pest control company?
An EPA-aligned, IPM-first playbook for spotting pests early, choosing the least-toxic option, using any product by the label, and vetting a pest control company before signing a contract.
Start with integrated pest management (IPM): correctly identify the pest, block its food, water and entry points, and use non-chemical controls first. Only reach for a pesticide if those steps fail, then choose the least-toxic, EPA-registered product that targets your pest and follow the label exactly. For larger infestations, hire a licensed applicator who inspects, explains, and writes the specific chemicals and re-entry times on a service contract.
Most household pest problems can be stopped before any spray, dust or trap is opened. The EPA's Citizen's Guide to Pest Control and Pesticide Safety frames the safe approach as a sequence: prevent the pest, choose the right product if chemicals are needed, use it exactly as the label says, and only hire a professional when the job is beyond what you can safely do yourself. Integrated pest management (IPM), as described by the University of California Statewide IPM Program, follows the same logic and adds a hierarchy that puts prevention and physical or biological controls ahead of any pesticide.
Step 1: Inspect and identify before you treat
A correct ID is the foundation of safe pest control. Many products are designed to target one group of insects (ants, roaches, bed bugs, wasps) and will do little to nothing against another, and mis-applying them is the most common cause of unnecessary exposure. Look at the pest, the damage it leaves, and where you are finding it. A county extension office, university diagnostic lab, or a licensed pest control company can confirm the ID if you are unsure.
Quick inspection checklist
✓
Where are you seeing the pest?
Kitchen, bathroom, basement, garden, foundation, attic — the location narrows the list of likely culprits and the right control point.
✓
What is the evidence?
Droppings, gnaw marks, shed skins, wings, frass (sawdust-like debris), or plant damage each point to a different pest.
✓
How many and how often?
A single ant trail indoors and a colony in the wall are very different problems; treatment and urgency differ too.
✓
Is anyone at higher risk?
Children, pregnant people, pets, fish tanks, and people with asthma or chemical sensitivity change which products are appropriate.
Step 2: Use IPM to prevent and physically control first
IPM is not a single technique but an order of operations: deny pests food, water, shelter and entry; use physical or mechanical controls; encourage natural enemies in the landscape; and only use a pesticide when monitoring shows the earlier steps are not enough. The EPA guide and the UC IPM program both emphasize that prevention is the cheapest, lowest-risk step, and that most infestations never need a chemical if it is done well.
Non-chemical controls that work in most homes
Seal entry points with caulk, weatherstripping, door sweeps, and tight-fitting window screens.
Store food in glass or hard plastic containers with lids that close; clean crumbs and take trash out frequently.
Inspect packages, grocery bags, and secondhand furniture for cockroaches, bed bugs, or stored-product pests before bringing them inside.
Use snap traps for rats and mice, sticky traps for monitoring insects, and exclusion devices (door sweeps, chimney caps, mesh over vents) to keep pests out.
In the garden, choose pest-resistant or native plants, water and fertilize appropriately, remove infested debris and fallen fruit, and plant flowering species that attract beneficial insects such as lady beetles and parasitic wasps.
Step 3: If you use a pesticide, choose and use it safely
Pesticides sold legally in the U.S. must be registered with the EPA, and the label is a legal document, not a suggestion. The EPA guide is explicit: read the label before you buy, read it again before you open the container, and follow it every time you mix, apply, store or dispose of the product. If a use is not on the label, it is not a permitted use — even if the product seems appropriate.
Lower-risk vs. higher-risk consumer pesticide options
Option
Best used for
Watch-outs
Bait stations (indoor)
Ants, roaches, occasional mice
Place where children and pets cannot reach; slow but targeted.
Pesticidal soaps and horticultural oils
Soft-bodied insects on plants, some indoor pests
Must wet the pest; can harm beneficials and some plants; check label for plant tolerance.
Microbial products (e.g., Bt)
Caterpillars, fungus gnats, mosquito larvae
Specific to a pest group; degrade quickly in sunlight.
Snap and glue traps
Rats, mice, monitoring insects
Place along walls; check daily; humane disposal varies by trap type.
Spray or fogger insecticides
Widespread indoor infestations, yard pests
Higher exposure for people, pets and beneficial insects; many require a licensed applicator by law.
Before you open the container
✓
Match the product to the pest and site
The label must list both your pest and the location (indoor, kitchen, yard, pet area) where you intend to use it.
✓
Buy only what you can use this season
Most consumer products do not have an unlimited shelf life, and storing pesticides is where many home accidents happen.
✓
Wear the personal protection the label lists
At minimum this is usually chemical-resistant gloves; some products also call for long sleeves, eye protection or a respirator.
✓
Keep people and pets out during and after treatment
The label specifies a re-entry interval (often hours). Treat that number as a hard rule, not a guideline.
✓
Never mix products or use more than the label rate
More pesticide does not equal more control and increases exposure without benefit.
Step 4: Decide whether to hire a professional
The EPA guide treats choosing a pest control company as a separate decision from using a pesticide yourself. The threshold is usually when the infestation is widespread, recurring, or involves pests that pose a health or structural risk (termites, bed bugs, rats, wasps inside the home, large rodent colonies). In those cases, a licensed applicator has access to products, equipment and training that consumers do not.
Questions to ask before signing a service contract
Are you licensed in this state? Ask for the license number and verify it with your state pesticide regulatory agency.
Who will actually do the work, and what training do they have? Some states require specific categories of certification for termite, fumigation or lawn work.
What exactly will be applied, and where? The company should name the active ingredients and show you the product labels.
What is the re-entry time, and how will it be communicated? It must match what is on the label.
What does the contract cover, for how long, and what does it cost to renew or cancel? Get the scope, warranty terms and any auto-renewal clauses in writing.
What is the IPM plan? A reputable company will inspect, identify, recommend non-chemical options first, and explain what you can do to prevent the pest from coming back.
If someone is exposed to a pesticide
Move the person to fresh air, remove contaminated clothing, and rinse skin or eyes with clean water. Have the product label with you when you call the Poison Control hotline at 1-800-222-1222 (U.S.) or your local emergency number for severe symptoms such as trouble breathing, seizures or unconsciousness. The EPA guide also recommends keeping the product name and EPA registration number from the label handy so medical staff can identify the active ingredients.
SUMMARY
The bottom line
Treat pesticides as a last resort, not a first response. Identify the pest, block its access to food and shelter, and use traps, barriers and beneficial insects first. When a pesticide is needed, choose an EPA-registered product that targets the pest and the site, and follow the label from purchase through disposal. For larger or recurring infestations, hire a licensed applicator who can name the chemicals, give you a written IPM plan, and explain the re-entry time in plain language — and check your state's pesticide agency to confirm the local rules that apply on top of federal registration.
Common questions
Before you move on
Do I have to follow the pesticide label exactly?+
Yes. Under federal law, a pesticide label is a legal document. Using a product in a way that is inconsistent with the label — against a pest not listed, in a place not listed, at a higher rate, or without the listed personal protection — is unlawful and increases the risk of exposure to people, pets and the environment.
Are 'natural' or 'organic' pesticides always safer?+
No. Active ingredients such as pyrethrins, copper sulfate and boron are derived from natural sources but can still be toxic, especially to pets, fish and beneficial insects. The EPA guide and the UC IPM program both recommend judging products by their toxicity, formulation and how specifically they target the pest, not by whether the label says 'natural' or 'organic.'
How do I verify a pest control company's license?+
Ask the company for its state license number and look it up through your state department of agriculture or pesticide regulatory agency. The EPA guide recommends confirming that the license is current, covers the type of work being done (general pest, termite, fumigation, lawn and ornamental), and that the company carries insurance.
What is the re-entry interval on a pesticide label?+
It is the amount of time people and pets must stay out of a treated area, stated on the label. It can range from a few hours to a full day depending on the product and how it was applied. Treat the labeled interval as a hard rule and ask your pest control company to confirm it in writing.
