How to Keep Bugs Out of Your Home Through Perimeter Pest Control

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Keith's Pro Tips

"Most likely, when you see one pest like cockroaches scurry across the floor this is often indicative that more pests are hiding in walls, under the sink, and other areas. If unsure, then lay out a pest glue board to monitor for indoor pest activity. If the glue boards are empty and you see no other signs of pests then you may perform a perimeter pest control application."

How to Keep bugs Out of Your Home Through Perimeter Pest Control

This page is a general perimeter pest control spray guide. Using the tips and methods suggested, you can prevent bugs from coming into your home as well as when to apply a perimeter pest control application. Follow this guide and use the recommended methods and products and we guarantee complete control of indoor pest infestations.

Most pests live on the outside of your home in the yard, but conditions indoors can attract these pests to travel inside. Once inside they can get into your food, cause structural damage to areas such as sub-flooring and walls, spread disease, and potentially bite or sting you, your family, and pets. Some pests enter through open doors and holes in window screens, but even a greater amount of pests may enter through any other openings from the outside.

Keeping pests out of your home is important, each season brings its own unique pest challenges. Treating the outside perimeter of your home with a perimeter pest control application is an excellent method of preventing pests like flies from gathering around windows, ants creating trails to and from your structure, and termites from swarming or breeding near your home.

Battling an insect infestation can be frustrating, expensive and time consuming but it can be avoided with perimeter pest control treatments. Conduct perimeter pest control around your home or structure to ensure these pests stay out of your home. Learn more about perimeter pest control through our DIY guide and use the recommended products to prevent unwanted indoor pests and to keep your house pest-free.

What is Perimeter Pest Control

Perimeter pest control focuses on creating a barrier on the outside of your home or structure to stop unwanted pests like termites, millipedes, crickets, spiders, cockroaches, ants, mice, ratssilverfish, stink bugs, and more before they enter your property and start causing problems. Although it focuses primarily on keeping pests out and away from your home it also helps to protect your shrubs, bushes, and ornamental landscape from pests infestations.

The perimeter of your home is considered any area next to the structure including the lawn, landscape bed, deck, porch, garage, around windows and door frames, crawl space openings, and the walls/edges of the building itself. Typically, perimeter pest control is applied no more than 3 feet up and 3 feet out from the structure to be treated.

This form of pest control involves creating physical barriers, like with copper mesh or foam, and creating chemical barriers with a long-lasting insecticide. A good pest control plan will use both physical and chemical barriers to exclude the most amount of pests from invading.

When Should I Spray The Perimeter Of My House for Bugs

Depending on your pesticide, a perimeter pest control spray only lasts for a few weeks or months. For this reason, your home's perimeter should be sprayed on a quarterly basis. This ranges to be about 2-3 times a year based on your geographical location.

Preferably, your home should be treated at least once every 90 days depending on the pest and where you live in the United States. As a general rule, spray once during the early spring and early summer when the weather starts to become warm and pest populations are still low. Then again in the fall when temperatures begin to drop and prior to the first frost in your region.

What Are the Benefits of Perimeter Pest Control

  • These type of treatments whether granular or liquid helps to fend a variety of pests from entering your property and home. Your location, pesticide, and timing of application will dictate which kind of pests come into contact with treated areas.
  • Takes place outdoors - keeping insecticides and pesticides out of the way of your family and pets.
  • Application is easier than trying to control pests indoors as they can hide in various structures, appliances, cracks, and crevices.
  • Protects landscape, plants, and ornamental gardens from being destroyed by pests like aphids or clover mites.

How to Prepare Your Home For Perimeter Pest Control

To help prevent pests from coming into your home perform the following basics before pest control treatments take place.

Close Off Pest Entry Points

Sealing Cracks and Crevices

Examine the outside perimeter of your home for holes, cracks, gaps, crevices, or other openings where pests could use to travel inside. Seal entry points around window and door frames with an expanding foam product like Solutions Sealator Pro Black Foam, and larger gaps can be plugged with copper mesh. This expandable sealant spray foam creates airtight seals to block pests from entering structures without damaging building elements.

You will need to install the Solutions Sealator Pro Black Foam on a pro-grade foam application gun like the Solutions Polyurethane Foam Gun. To use this product with the Solutions Polyurethane Foam Gun remove the lid from the foam canister and turn the foam gun upside down. Quickly screw the Solutions Sealator Pro Black Foam onto the the foam guns adapter until secure. Once both products are connected you will then shake up and down about 20 times. Loosen the guns control knob and begin to apply the Solutions Sealator Pro Black Foam to thin cracks and crevices like joints and around window and door frames.

Install door sweeps and weather stripping around doors that lead outside, including windows. Make sure that large openings and gaps are repaired or sealed around pipes, plumbing, window screens, and door screens.

Trim Overgrown Vegetation

Pruning Overgrown Foliage

Next, check your ornamental bushes and shrubs along the structure and trim down any overgrowth. Overgrown vegetation can create direct pathways for pests like ants and termites to invade. Squirrels could even access your roof via untrimmed tree branches. Pests like mosquitoes use overgrown plants as shelter.

Prune shrubs, tree limbs, and other plants until they are not touching the side of your house or hanging above it.

You will also want to keep your lawn mowed to a reasonable height to reduce hiding spots and discourage pests from harboring near your home. Different grass species will have different preferred mowing heights. Cutting your grass the day of or a few days prior to a perimeter pest treatment can also allow insecticides to reach pests easier.

Clear Away Plant Debris

Raking Lawn

Piles of yard waste can provide another hiding place for pests from insecticide applications and promote conditions for breeding. Rake away fallen plant debris from fallen branches, leaves, pine needles, grass clippings, twigs, limbs, rocks, and other foliage.

Clear away any mulch, plant bedding, and rocks at least 6 inches from your homes foundation. Eliminating these conditions can help to reduce moisture, attractants for pests, and increases perimeter pest treatment application.

Minimize MoistureCleaning Rain Gutter

Standing water around any part of your home acts as both a breeding ground and food source for pesky pests. This is the case for downspouts and gutters as they can collect water and plant debris. Ensure downspouts are draining water away from your home's foundation.

With a glove covered hand, remove plant debris that has collected in rain gutters. If you have sprinklers in your lawn, point them away from your home and more towards your lawn.

How Do You Spray the Perimeter of a House for Bugs

Perimeter Application

After the yard has been cleaned and any openings to your home have been sealed, you will need to apply a residual insecticide like Supreme IT to create a chemical barrier around your home. Supreme IT is a broad-spectrum insecticide that is labeled to control over 70 types of pests on contact. This insecticide also provides residual repellency around homes, turfgrass, and other ornamental plants adjacent to the structure for up to 90 days after application.

Determine how much Supreme IT to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet then multiply them together (length X width = square footage). You will need to mix this product with water before application, so we recommend you mix and apply your solution with a handheld pump sprayer. To stop general pests from entering your home, apply 0.33 to 1 fl. oz. of Supreme IT with 1 gallon of water to apply over a treatment area of up to 1,000 sq. ft.

When your solution is ready, conduct a barrier application around the perimeter of your structure. First spray any entry points like doors, windows, and other voids that pests can use to invade with a coarse spray pattern. Then, spray your structures outer perimeter by spraying 3 feet up the structure and 3 feet out.

Best time to spray this product is during calm weather when rainfall is not expected 24 hours after application. Keep children and pets away from treated areas until the spray has dried. Labeled pests that come in contact with the product or its residual will have their nervous systems impacted and will die in several hours.

We recommend you make applications once every 3 months to maintain protection year-round.

Once you have applied physical and chemical barriers, pests will be unable to invade your home. Keep in mind that its possible for pests to have already been inside before your barrier application, so we recommend you treat indoors as well. Use flushing agents like Pyrid Aerosol, other residual products Flex 10-10, or apply D-Fense Dust to eliminate pests and protect your home.

Key Takeaways

Does Spraying For Bugs Outside Make Them Come Inside?

  • Perimeter pest control applications will create a barrier and once pests cross these treated areas they will perish. Any pest infestations found indoors could be the result of previous egg laying activities, areas missed with indoor pest control efforts, or possibly areas outside of your home that was not covered with pesticide application. We suggest treating indoor cracks, crevices, baseboards, around water pipes, behind and underneath refrigerators, around window and doors, and corners of rooms with Supreme IT to create an interior perimeter pest barrier.

Do Bug Perimeter Sprays Work

  • A perimeter pest control treatment is an effective preventative measure to keep various pests from coming inside or away from your home. You will need to control present indoor infestations before implementing a outdoor barrier application and seal holes, repair damaged screens and thresholds, and other cultural methods.

How Often Should You Spray Around Your House For Bugs

  • Exterior perimeter pest control spraying should be done on a quarterly basis with applications occurring at least once in the early spring, early summer, and fall.
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