Japanese hornets are large wasps, and they can be killed with a can of foam shooting spray or a bio-pesticide dust. Get rid of a colony of Japanese hornets with one or two treatments with help from a pest control technician in this free video on bugs and pest extermination.
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Hi, the other day I was asked about killing Japanese hornets. Well, let me tell you a little bit about that. I'm Michael Piacenza with Advantage Pest Control. Well killing Japanese hornets or wasps, is not for the faint of heart. These are some of the biggest wasps, hornets you'll ever see. They're about two inches long and their wingspan is about 3 inches. These are some nasty buggers and if they bite you, you're in trouble. You've got to have it treated immediately. It will actually start breaking down the tissue where they've bit you. So where do they live? They live in colonies and like a lot of wasps, not all, but a lot of them, and they'll be up high, maybe under your eaves or in a tree. So now, how are you going to take care of that? A can of that foam shooting spray from the hardware store, well if it's a small nest or a small colony, maybe that'll knock them out but it does make them mad and they'll come after you. So I personally don't like to use any of the liquid sprays. That's not a very long handle right there for me to go after them. So I like to use a custom made blowgun which is a long tube and it has a straw on the end of it that I can direct and I can fill that with a pesticide, put it right at the opening to the colony and blow it inside. Be very, very careful if you're doing this because that dust can come down, you're going to be shooting up into the air, that dust comes down you don't want to inhale it. So I personally prefer to use a biopesticide, asafoetida dust which is very, very safe and what happens is I shoot it into the colony, it disrupts them for just a second. I just stand very still and they just go about their business and as they're going in and out through that opening, all bees, wasps, hornets for the most part have a hair outside, their surface is covered with hair and the dust gets on their and they're constantly grooming themselves. And they also carry that throughout the colony. It gets into the colony, usually one treatment, maybe two you can wipe out a colony. So I hope this has been helpful and just remember if you're going to try something like this, safety first, wear protective clothing, be very, very careful. Make sure there's somebody there as a backup in case you are bit or stung and have an allergic reaction. Good day, I'm Michael Piacenza.