As you know, Medical Labs need stinging insects for sting allergy patients. The only way I can find them is by letting homeowners find them for me, hopefully not the hard way. When the nest is located in a wall void and not the ground, I have to come back repeatedly to collect the workers. I usually can kill in ground nests.
Milking the nest means that I come and bother the nest and collect the workers that pour out. This will keep the population down so the nest is not as much of a threat. There will still be workers coming and going, but there will be much fewer than before.
One of the most important pieces of information that I can give you is that when the season is over (about the end of September) the nest will die and WILL NOT come back. Milking the nest means that it will die faster than usual because I will be drawing off the population.
If the nest is in a dangerous place and it needs to be removed completely, please let us know. We will try to kill it. If you have a shop vac, we can set it up to catch and stragglers after we leave.
Generally speaking, in-house nests have to be milked if you are signed up for free collection. In ground nests can be milked and sometimes easily destroyed. I will completely remove hornet nests at the end of the season, so there’s not worry about them.