Identifying your pest problem is a snap with our color pictures
and insect fact sheets. We have tip sheets on the most common
invaders to your home or office. You can also check out the
links to the Ohio State University Extension service as well as
Purdue University Extension service. Yellow Jackets and Hornets
make their presence known just after July 4th and continue on
until the first frost. In the late summer and early fall when
their populations peak, the yellow jackets. normal diet of
spiders and other insects disappears and their feeding habits
become a problem to human activity as they forage for food at
picnics and other outdoor activities. Yellow jackets tend to
defend their nests vigorously when disturbed. Their venomous
stings can result in lifethreatening situations, especially for
people allergic to yellow jacket venom. On warm days in late
April or early May a fertilized queen emerges from her
overwintering site to look for a suitable place to establish a
nest. She attaches a fiber (pedicel) t