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Old 02-13-2014   #21
Redmond, Oregon
Paddling Since: 1973
Join Date: Jan 2013
Posts: 1,031
Yellow Jacket Trivia

Yellowjacket populations are largly determined by the weather. For instance, if there is a sudden cold snap in early April, all of the queens that emerged before then will die, decreasing the population. During a good year the number of occupants for a single colony may reach 5,000. The queen will produce about 25,000 individuals during the course of the season, which may last from late March throught the middle of fall. (Andrews, 1969; Evans, 1963; Grissell, May 1999; Ross and Matthews, 1991)
In spring and early summer, yellow jackets are carnivores, feeding mostly on insects to provide protein to developing larvae in their colony. In doing so, they help keep garden pests, such as caterpillars, in check. As the season progresses, their population grows and their diet changes to include more sugars. As natural food sources become scarce, they turn to scavenging, and that's when you'll find them lurking around garbage cans and pestering picnickers.
There are four basic types of offensive tactics that can be taken to eradicate Yellow Jackets:

1. trap workers
2. trap queens (Apple Juice traps in the spring)
3. nest destruction
4. smash them one by one
Washington DNR's message to the public is that the agency does not release yellow jackets into the wild. They say cool spring conditions are to blame, for boosting the population of the aphid plants that yellow jackets feed on, and in turn, boosting their population.
From a Park Service website:
However, in late summer and early fall when their populations peak, the yellow jackets' normal insect diet disappears and their feeding habits become a problem to park visitors. At that time of year, the yellow jacket has an appetite for the same food and drink as those consumed by humans.

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Old 02-13-2014   #22
Redmond, Oregon
Paddling Since: 1973
Join Date: Jan 2013
Posts: 1,031
My personal preference is gasoline.

For those smaller jacket nests under hanging eves, wait until the cool of the morning, fill an old margarine container 1/8th full with gasoline.
While going up a ladder with gasoline - bee careful.

Place the upright container under then over the nest. Slide the container, that is snug to the eve, across the eve breaking the nest free and dropping it into the small pool of gas. Don't look down. Sneak the margarine lid between the container and the eve. Snap it on.

Go down the ladder and don't shake it. If you do the gas will more readily vaporize and blow the lid off and perhaps spray onto you some accelerant.
Just gently get each jacket his share of gas and they die immediately.

If you feel the need. Burn to specifications.


You will not get all the jackets.

Some will fall away or be off site at the time of your home improvement.
So rinse and repeat the next day.

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