do it yourself pest control

DIY Termidor SC Termite Treatment

[ 8 ] February 21, 2014 |

What you Should Know

DIY Liquid Termidor SC Termite Treatment toolsComplete Step-by-Step instructions to guide you through an Eastern Subterranean Termidor SC termite treatment. If you can mow your own yard or wash your own car, you should have no trouble being able to do this treatment. Let Fipronil, the product’s active ingredient do all the work.

Getting Ready

  1. Measure the distance around your foundation wall. example, across the front might be 60 feet, down each side might be 30 feet each side and across the back another 60 feet. Total your measurement 60 +30+30+60=180; so you have 180 Linear feet – This number tells you how much product you need. Always apply the correct amount of product.
  2. Each 60 ft. section of foundation wall requires one 20-oz bottle of Termidor. (So in the example in step one above of 180 Ln. Ft would require 3 bottles of Termidor to do the job.)
  3. Once you have your Termidor  you will need a clean 5 gallon bucket for the DIY Liquid Termite Treatment and a mattock grubbing type hoe (Lowe’s carries both items if you don’t already have them.)

Let’s Begin

  1. To begin your DIY Liquid Termite Treatment, You must dig a trench, 4 to 6 inches wide and 4 to 6 inches deep, at the base of your foundation wall all the way around your structure. Leave the dirt right there, just outside the trench. You will need to put the excavated dirt back in the trench after the Termidor SC is applied.
  2. (OPTIONAL STEP) If you have a cement patio around your back door or a porch across the front, a professional would drill down using a hammer drill as close as possible (suggest 4-6 inches so you will miss drilling into the footer. And no more than 1 foot away from the foundation wall at intervals of 12 inches. If you decide to do this step, I would suggest using a 3/8  inch mortar drill bit. A 3/8 inch hole provides plenty of room to apply the chemical and is easier to patch with a dab of mortar than a larger hole.
    The Reason for this drilling
    , is to allow you to put approx 1 quart of finished Termidor into each hole. Since you can’t trench the dirt with concrete over it you need the holes to deliver the Fipronil.
  3. If you decide to leave out step 2, just trench around the patio and apply Fipronil into the open trench. Be sure to add the Ln. Ft. measurement to your total as you figure how much Termidor you will need.


  1. (TRICK) Divide each 10 ft. section of the trench using an old roof shingle or anything that will dam up the trench, so you will get an even treatment application.
  2. Pour 3.3 ounces of Termidor into your bucket and add 4 gallons of water and stir well.
  3. Pour the 4 gallons into your trench and kick the dirt back in as you pour. This should mix the dirt and chemical together giving you a 4 to 6 inch deep, 4 to 6 inch wide treatment zone. Sub-subterranean termite forage in the top ten inches of the soil so this will assure termite contact the treated soil and begin spreading the effect through-out their colony.

How Termidor SC works

Termidor was introduced in 2000. Counting the years it was tested before release a treatment with Termidor SC, should last from 15 to 20 years. After treatment it can take 8 weeks up to 3 months to eradicate the colony. During this time sub-termites could still do some light feeding. This is normal and should cause no alarm. It usually takes around 8 days for a termite individual to contact the Fipronil and die. During that time this termite infects other termites and they have their 8 day turn at spreading the effect. Termidor SC’s Domino effect travels through the colony until it’s eliminated. As the colony slowly dies out the surviving termites will try to feed until no termites are left.

Article Name
DIY Termidor Termite Treatment
DIY Liquid Termite Treatment - Step-by-step instructions on how to do a chemical "DIY Liquid Termite Treatment" using Termidor SC, same as the pros use.
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Category: Termite News

About the Author ()

Founder and Editor in Chief of Termite MD, Pest MD and Columbus Georgia Online. Certified WDO Georgia and Alabama 1985-2013. When I'm not working on the Internet I love working in my yard.

Comments (8)

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  1. CSAli says:

    Is this safe for dogs in your yard? They pretty much stay in doors but do go out in the back yard.

    • Mike Dukes says:

      Dogs and pests are safe as well as humans when chemical products are dry, (4 to 6 hours recommended) and of course you are not spraying the Termidor you are treating the trench you dug and covering it back up. Put your pets up when you treat. Termidor is one of the least toxic products pest control companies use.

  2. anon says:

    Hi Mike,

    I have a deck 20×30 feet, which prevent me from trenching directly under it; will trenching around it, at the edge good enough? Will it require more Termidor.


    • Mike Dukes says:

      Yes you may trench around the deck, f that is the only way. Getting Termidor in the ground as much as possible around your structure will increase termite foraging encounters, which will kill the colony when the foragers return home.

  3. Dion says:

    My question would be do I complete the diy treatment first then go back and make my repairs . How would I know how long to wait for repairs if not .

    • Mike Dukes says:

      Make sure your termite treatment is done correctly, then make repairs. You don’t have to wait, but do not disturb your termite treatment. If you do just re-apply in that area.

  4. Patrick Minns says:

    Mr. Dukes,

    Thank you for a very informative article about the use of Termidor SC for DIY termite control. I find it refreshing to read a positive opinion about a DIY approach to dealing with this universal problem. I have enormous respect for the product as it performed beyond my wildest expectations this past summer as I fended off an invasion of Ants the size of which I had never experienced. Nothing I bought from the box-hardware stores worked and so I researched online and discovered Termidor SC. I purchased a bottle and a pump sprayer, then closely read the instructions on application for ant control. The very next day the invasion had turned into a vanishing act as we have since not seen another Ant indoors since.
    So when my landlord asked me for help dealing with the damage to his home resulting from Termites, I began researching the topic to discover my Termidor SC is THE go-to product that professionals use! Your article explaining the trench method explains how to apply the product, of which I have the utmost confidence. Nice job, and thank you!

    Pat Minns
    Orange, Ca

    • Mike Dukes says:

      Thank you for your kind words and I am pleased to know Termidor did the job for you. I have treated my yard with Termidor each summer for the past two years and I won’t waist my time with anything else.

      Mike Dukes

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