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Bill from Greenwich, Ct writes

How long until yellow jackets stop emerging into house after treatment with Tempo 1% Dust?

I have a yellow jacket nest in a house wall. They were getting access to the house at an opening between the roof and the siding. Three weeks ago I treated the opening twice with Tempo dust over two days and since then there has been no activity there. However, dead and alive yellow jackets continue to appear inside the house, at a rate of 1-2 per day, the same rate prior to treatment. Must I drill holes in the wall to find and treat the actual nest, or will they die out in time? And how long? I have not been able to find any other activity by worker wasps into and out of the structure.

Answer:

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. 

Answer last updated on: 08/10/2015

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Tempo 1% Dust Insecticide

Tempo 1% Dust Insecticide

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