Caddisfly Control

Caddisfly Control

Most Effective Products

Supreme IT Insecticide
Suspended Concentrate
As low as $54.99
Keith's Pro Tips

“Make sure that you eliminate standing water around your yard and any container that holds water. The Caddisflies will be looking for a body of water to deposit their eggs.”

Caddisfly Control: How To Get Rid of Caddisflies

This page is a general Caddisfly control guide. Using the products and methods suggested you will reduce the likelihood Caddisflies. Follow this guide and use the recommended products and we guarantee a great reduction in the population of Caddisflies.

If you own or live close to a pond or a lake, you may have noticed a winged cream-colored insect that swarms in huge numbers and looks similar to a moth. That insect is a Caddisfly. While these insects mainly stay near bodies of water, they may wander off and end up in homes where they can be a troublesome pest especially when they swarm in large numbers.

Caddisflies are heavily attracted to light and may have wandered away from their aquatic habitat by the lure of home lighting. Caddisflies do not cause any harm to people in the form of stings or bites nor do they damage structures, but they can be a nuisance when present.

While adult Caddisflies only live for a few days once they reach adulthood, they do not breed and develop inside homes and buildings. Caddisfly swarms can occur practically any time of the year, so if they are a problem for you, hoping for a season of relief may not happen.

If you have a Caddisfly issue in or around your home, there is a way to get rid of them. Our DIY guide below covers how to handle them and what the best products are for caddisfly control.

Identification

caddisflies how to get rid of caddisfly identification

Before moving forward with treatment, you need to be certain that you are dealing with a Caddisfly and not some other insect. Caddisfly adults are long, slender, and can range between a quarter of an inch to an inch long. They can vary in color depending on the species but usually are pale brown to tan.

Caddisflies have two pairs of hairy-textured wings that are held in the shape of a tent over their body when at rest. Their antennae are as long or almost as long as their entire body. They normally stay near bodies of freshwater but may wander onto homes usually by accident.

Use the description and image above to help you to identify Caddisflies on your property. 

Inspection

Inspection of your property is crucial for complete control. During the inspection, you will identify areas that Caddisflies might be attracted to after they hatch, and fix them to prevent most of the swarm from coming in contact with your property. 

Cover pools to deter Caddisflies.

Where To Inspect

Since most infestations occur outdoors, begin your inspection outside. Search outdoors in patios, porches, front doors, and driveways. Also, search for excess moisture on your property and yard. If you have a pool, search there as well.

What To Look For

You're searching for excessive moisture and outdoor lights. If you have a pool, make sure to keep it covered during the months when the Caddisflies are expected to hatch. One of the most obvious signs to watch for are Caddisfly adults showing up around sources of light at night. A few may not be a big problem but it can become an issue when large swarms of Caddisflies are attracted to the light and make their way by accident into homes and land on walls and surfaces.

Treatment

Once you have confirmed the conducive conditions that attract Caddisflies it is time to being treatment. Remember to first read all product labels and follow the application instructions on these labels, and stay safe by wearing personal protective equipment.

Our main recommendation for getting rid of Caddisflies and keeping their swarms at bay is a barrier application of Supreme It Insecticide. Supreme IT contains bifenthrin and delivers a quick knockdown while also carrying a long residual, staying effective for up to 90 days after application.

Step 1 - Outdoor Treatment with Supreme IT

Caddisflies reclaim it treatment

Mix 0.33 to 1 fl. oz of Supreme IT with a gallon of water inside a pump sprayer. This application rate will treat 1,000 square feet. You will then do a perimeter treatment around your structure by spraying 3 feet up, and 3 feet out from the foundation. Spray in this manner all around your property. Remember to also spray, window frames, door frames, eaves, soffits, and electrical/plumbing penetrations.

Do not let people or pets enter areas treated until 2 to 4 hours have passed.

Prevention

Caddisflies how to get rid of Caddisfly prevention

After treating for Caddisflies, it's best to eliminate chances of a return by enacting preventative measures. To deter Caddisflies from coming close to your property start by eliminating bodies of water near your structure. By eliminating possible bodies of water, or covering your pool, you will prevent Caddisflies from coming close to your property since they will seek bodies of water to drop their eggs.

Also, do your best to maintain all outdoor lights turned off, during the months when Caddisflies are expected to hatch, so the Caddisflies won’t be attracted to your property. If the lights can not be turned off, consider switching them to yellow bug bulbs, which might attract fewer bugs, including Caddisflies. And finally, spraying Supreme IT before the Caddisflies hatch will prepare your home before they invade.

Key Takeaways

  • Caddisflies are aquatic insects that hang around lakes, ponds and other freshwater areas. Their attraction to light can lure them to a home structure which is where they can be a nuisance.
  • To control Caddisfly infestation, apply Supreme IT Insecticide as a barrier treatment around the perimeter of the structure.
  • Prevent future Caddisfly invasions by reducing light outdoors or changing light to yellow bug bulbs. You can also use Supreme IT as a preventative treatment when it is Caddisfly season.
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