Nisus Tim-BOR Professional Insecticidal Dust, 25 lbs

This borate powder mixed easily into solution and applied evenly on exposed framing lumber. It is exactly the professional-grade product described, water soluble and simple to work with. I used it as a preventive treatment against wood-destroying insects and decay before closing up the walls.

Would order from them again

Carpenter ants started showing up in the kitchen. Apple phone identified the critters as Carpenter Ants. They don't build furniture so after some research I bought this product and applied it twice in one week. Spayed the entire house and around the perimeter of the house. Three weeks later no more destructive ants. Saved $187 to have "Professionals" Spray harmful chemicals.

Easy to use and seemed to work well.

I've bought this product several times through the years. Primarily, I use it to treat insect infestation, like carpenter ants, when doing repairs on exterior trim or as preventative for fungus and rot for wood which might, at some point be accidentally subjected to moisture, like around windows. I generally only treat small surfaces, so I mix it in small quantities to spread with a hand sprayer or small garden sprayer. I then store the remaining powder air tight. I do not use this for exterior purposes, although it can be used for surfaces sheltered from rain, as rain will leech it out of the wood. For exterior purposes, I prefer copper napthenate. I like that Timbor is of low toxicity. The powder can also be used to dust surfaces and grooves against cockroaches and silverfishes

I have had good results using this to avoid and to kill termite issues. Toxic as one would expect, so don't take short cuts - avoid skin contact and inhaling dust. Don't use it where your pets of kids will walk through it. In one case, I was able to drill holes into a 2x6 door jamb and mix a slurry with water which I injected with a small syringe. Problem solved with only one application.

I received the white bag as on the Amazon ad. It was it its own cardboard box for shipping. Each bag is 1.5 pounds. The instructions on the back of the bag explain that one must mix one pound in one gallon of water for weaker 10% solution, or the entire 1.5 pound bag in one gallon of water for the stronger 15% solution. When you see the size of this bag, and compare it to a gallon milk jug (or yard sprayer), you'll scratch your head a bit; it'll be like someone telling you to dissolve four heaping scoops of chocolate drink mix in a single glass of milk. Indeed, many reviews state how hard it is to dissolve this amount of product in such a relatively small amount of water. Package also states to use immediately, which makes sense as the powder will settle out in about ten minutes or less otherwise. You'll have to keep shaking the bottle as you use it, if you're brushing it on then use an open container and keep the stirrer inside the bucket with your brush. While it may be good for spot treatment, such as termites around a couple of shed posts, it's not adequate for larger areas, such as the perimeter of a wooded house. You'll have to imagine a one gallon sprayer on steady stream going around the perimeter base of a wood house...I'd estimate an average homeowner will be mixing at least five bags of this product, at current price, about seventy bucks worth of product per application. The label does not specify the duration of efficacy, so it's unclear if this should be applied more than once yearly. As this is a salt-based "organic" product, I would estimate that using it more than once per year to achieve ultimate, lasting efficacy is key, particularly in areas subjected to weather. For my own comparison, the pest control guys (and I have no affiliation), when I used them, charged $75 per treatment, three treatments per year, and guaranteed no termites, carpenter ants, etc., and could provide documentation of ongoing treatment should I ever sell my house (required under state law here). Applying the Tim-bor three times a year to a house costs virtually the same. So, there's really many factors that each homeowner must assess for themselves. Does this work for termites? I don't know because I just sprayed it and time will tell. Something about it tells me that it may wash off quite quickly in rain-exposed areas, but we'll see. It is different than the chemicals used by the pest controllers, that much is true. All in all, I probably would not...taking the cost, lack of necessary treatment documentation, effort of mixing gallon after gallon, gummy sprayer nozzle, etc....use this in a consistent basis. I might use it if, like some reviewers, I had a single termited bench, fence post, small tool shed base, etc. Yoir mileage may vary. On products such as this, there are loads of opinions based in science, anecdote, and mythology, often mired in unnecessary discourse about the harm to health of chemicals used by pest controllers, and such; if you have input, write a review, it'll get many more "eyeballs" than commenting here. Thanks. For those that this helped, keep fighting the good fight. Cheers, fellow Earth-dwellers.

Worked good for what we used it for