While you are correct in that injecting termiticide into the ground seems more consistent with how professionals treat with Termidor SC and similar products, keep in mind that they are also using truck-mounted power sprayers with very high pressure to forcefully inject the product into the ground. While trenching may be laborious, it is actually a better treatment because you are creating a continuous barrier around the structure rather than creating spots of injection. We always recommend trenching except where spaced applications are needed due to drilling in concrete around the home. You are still using 4 gallons of solution per 10 linear feet, regardless of how it's applied, and the product needs to be at least 6 inches into the soil. Keep in mind, too, that a proper treatment with Termidor is good for at least 10 years.
Termidor SC cannot be used in tree stumps but you could use another product called Dominion 2L. You can drill into the stump and then inject Dominion 2L into the stump where the termites actively are using a hand pump sprayer. You can also choose to trench around the stump and apply the product to the trench. Dominion will help to eliminate the colony below ground as well as those in the stump. Termites do not attack live, healthy trees so there is nothing that you can really do to protect the any nearby trees. They are natures recyclers so they go after dead/decaying wood more.
If the wings are falling that is normal. Termidor SC does need time to work and should not be retreated this soon.
It is not recommended to use Termidor SC with rock, granite, or gravel. Termidor SC is made to bind to soil molecules which allows it to last for 10 years, whereas Termidor applied to porous surfaces such as rock, granite, gravel, or other material will only last and remain effective for a few months. You should dig a trench in the soil against the foundation and/or drill through concrete to apply. Please take a few moments to review our article on How to Treat for Termites for a successful application. Please let us know if you need anything else.
Most homes for sale to require a pass of termite inspection or a current termite treatment. Please contact your Local Cooperative Extension Office to pin down what the requirements are in your area.
While you can use Termidor SC to treat voids in your subfloor, we would recommend to use Boracare instead because it can be applied to raw wood, be absorbed and last the lifetime of the wood. You can use Termidor SC in your crawl space if there's soil, you can trench around the piers to protect your home.
No, Termidor SC is not labeld for Carpet Beetles and can only be used indoors for active termite treatments. Adult carpet beetles are most commonly found outside so if you have not treated outside or inspected for areas where they could be nesting, we recommend treating there as well. They feed on pollen and nectar, but lay eggs in bird, rodent, bee, or wasp nests or old spider webs to give the larvae an abundant food source. Clearing these away from your home, along with checking near highly pollinating plants near your house and checking cut flowers for the beetles before bringing them inside.
To access the area under the cabinets you can also use Delta Dust and apply with a bellow hand duster to the cracks and crevices under the cabinets and inside the closed area underneath. You only need a light coating but this will last 6-8 months in undisturbed areas. As the carpet beetle larvae hatch and/or crawl out of the cabinet area, they will come in contact with the dust. This would give better results then spraying inside with the Suspend SC.
Adding Gentrol IGR (insect growth regulator) will also stop the growth of the immature stages of the carpet beetle and can be mixed in right along with your Suspend SC in a 1 gallon pump sprayer. Mix 1oz Gentrol with 1 oz of Supsend SC with 1 gallon of water.
Spray along the floorboards under the cabinets, closets, corners, etc and let it completely dry. After the liquid has dried, come back and apply the Delta Dust. We have a great video here that will show you how to apply to wall voids and hard to reach areas.
Vacuuming is cruicial to eradicate the carpet beetles. Use crack and crevice attachements to get deep into the baseboards, grooves and other areas where lint, dust, pet hairs, etc will build up.