Our most popular dust
Tempo Dust will usually eradicate a nest within 24 - 48 hours depending on the size and depending on whether all entry and exit points were treated. As long as they are contacting the area where the dust was applied, then it should kill them all. It might be best to also drill holes in the area you suspect the nest to be to kill the larvae which may now be old enough to emerge.
Tempo 1% Dust is our best selling product to eradicate bees.
Tempo Dust and Delta Dust are both very good for carpenter bees and will work. The main difference between them is that Delta Dust is waterproof and has a different active ingredient than the Tempo Dust does. If you are concerned about water or moisture getting into the area you are treating, Delta Dust is an excellent option. Tempo Dust is also very good and will eliminate the bees as well. Be sure to wait at least 14 days or until there is no longer any activity to plug the holes up.
Also, please check out our Carpenter Bee Guide for tips on how to treat and prevent carpenter bees.
No Tempo 1% Dust would not work if it got wet.
Yes, Tempo 1% Dust is a great choice to apply to the wasp nest if you have access to the opening. You should treat late in the evening or early in the morning when the insects are the least active. The wasps that come in contact with it will transfer from bee to bee, killing adults and larvae.
Our most popular dust for bees/wasp is Tempo Dust. You will need a hand duster to apply it with. It usually works within 24 to 48 hours. You want to go up to the opening where they are flying in and out of at dusk or at night when they are not active and puff twice directly into the hole. Then pull the duster out and puff directly at the hole to cover the opening from about 5 inches away. This is the most efficient and fastest way to eliminate a bee/yellow jacket/wasp nest.