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Yellowjackets

BALD-FACED HORNETS

BALDFACED HORNET BIOLOGY                      BALDFACED HORNET ELIMINATION

Wasp & Hornet Elimination Kit

GALLERY OF PESTS               MAIN INDEX


BALDFACED HORNETS

The Baldfaced hornet (Dolichovespula maculata) is sometimes called the white-faced hornet, but is actually a yellow jacket.  It's easy to spot since it's our only black and white yellowjacket.  Its nest is a gray "paper" envelope with several layers of combs inside.  A mature nest is bigger than a basketball, but pear-shaped, with the larger end at the top and an entrance hole near the bottom.

A single, over wintering queen begins building the nest in the spring.  She lays eggs and tends the first batch of larvae that develop into workers.  These workers tend new larvae and expand the nest throughout the summer.  A mature colony can have several hundred workers by the end of the summer.  In fall, workers die and next year's queens find over wintering sites.

Baldfaced hornets are beneficial, capturing insects (often including other yellowjackets) to feed to their larvae.  Though larger than other yellowjackets, Baldfaced hornets are generally more docile.  But they can become aggressive and will sting when their nest is disturbed or threatened.

A Baldfaced nest is usually constructed high in a tree.  In these cases the nest is best left alone.  In fact, Baldfaced hornet nests are often first noticed in fall when leaves drop, exposing the nest.  By this time the hornets are dead or dying, and the nest will not be reused.

Occasionally you will find a Baldfaced nest built on the side of a building, in low shrubbery, or even in an attic or shed.  Nests in these sited will probably need to be eliminated.

Baldfaced Hornet Elimination

  1. Treat the hornet nest as late in the evening as possible.  Remember that all wasps, hornets and bees are at rest when it is dark.  Not only will all the hornets be in the nest for you to exterminate (instead of foraging for food some distance away) , you will be at far less risk when they are resting. No one wants to treat a hornets' nest with hornets dive-bombing their head!
    Our Wasp & Hornet Elimination Kit contains everything you need to successfully exterminate a stinging insect nest: 2 cans of professional Wasp Freeze, 1 Lb. Delta Dust, Crusader Duster for applying your dust.

  2. When approaching the nest, move slowly so as not to disturb the sleeping pests.  If eliminating the nest in late evening is not possible (forcing you to work in broad daylight), avoid crossing the obvious flight path.  You also do not want to cast a shadow across the nest while you work.

  3. For initial "knockdown" or quick kill, use a professional wasp freeze such as Whitmire Wasp Freeze (previously sold under the name PT 515.)  This will enable you to attack the nest from a distance or reach higher areas without the use of a ladder.  The wasp freeze should first be directed at the entrance of the nest to eliminate any guard wasps.  Next, thoroughly soak the remainder of the nest.  For the average size nest (or larger) you will need two cans of wasp freeze.  These types of aerosol are not very expensive and you do not want to run out of product in the middle of the job!

  4. You can now finish the hornet elimination.  This is best done using Drione Dust or Delta Dust.  Either one of these products will do an excellent job, and they also are packaged in a container that allows you to apply the dust directly.  Ease the tip of your dust container (or Tech Duster, if you prefer) into the entrance and quickly squeeze three or four times.  This will send the pesticide dust far into the galleries, where it will remain long enough  to kill all hornets.
    Order the Wasp and Hornet Elimination kit

  5. After 24 to 48 hours, all hornets should be dead.  (If not, you simply repeat the dust application)  You can now safely remove the empty nest.

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household pests

hornet nests