Posts Tagged: bed bugs
Most of us remember the old nursery rhyme, "Good night, sleep tight, and don't let the bed bugs bite," and vow to do everything we can to avoid any blood-letting.
Whether we call them "blood suckers," "menace in the mattress," or "human parasites," it's not cool to be bitten by bed bugs.
"Bed bug biting," however, is not part of their job descriptions.
The crowd watched in awe as the reddish-brown blood suckers turned from flat to bulging. The insects, Cimex lectularius, are "visually adorable," Wishon said, noting that they are pests but they don't spread diseases. She keeps two colonies in Briggs Hall for research purposes.
Several visitors told of their personal experiences with bed bugs--in their hotels and homes, and in their bedding and baggage.
Wishon made sure no one took any home.
For more information on bed bugs, check out the Entomological Society of America (ESA) website on bed bug resources. ESA includes the UC Statewide Integrated Pest Management Program (UC IPM). Another good source is the relatively new University of Florida bed bug site.
"Despite their name, bed bugs can infest areas other than beds," according to the University of Florida website. "They tend to locate in cracks and crevices, such as behinds baseboards, wall outlets, and wallpaper; between bed joints, slats, and dresser drawers; and along mattress seams and in linens and clothes. Most bed bug infestations occur in the home, along with hotels, dormitories, and cruise ships. Bed bugs easily transfer from one site to another through infested belongings like clothes, suitcases, second-hand furniture, beds, and bedding."
Forceps held by Danielle Wishon zero in on a bed bug to be fed. (Photo by Kathy Keatley Garvey)
Bed bug scurries away after taking a blood meal. (Photo by Kathy Keatley Garvey)
Two bed bugs on Danielle Wishon's arm. (Photo by Kathy Keatley Garvey)
Danielle Wishon (foreground at left) answers questions. (Photo by Kathy Keatley Garvey)
Bed bugs, lice, ticks, mites, fleas and mosquitoes.
If you want to see and/or learn more about them, attend the Bohart Museum of Entomology's "Snuggle Bugs" open house from 1 to 4 p.m., Sunday, Jan. 12 in Room 1124 of the Academic Surge building on Crocker Lane, UC Davis campus.
It's free and open to the public, and families especially are encouraged to attend, says Tabatha Yang, education and outreach coordinator.
A highlight will be a display of bed bugs reared by Danielle Wishon, a 2013 UC Davis entomology graduate and an affiliate of the Bohart Museum. Wishon. She plans to feed them (her blood) around 2 p.m.
Wishon began rearing her first research colony of bed bugs in October 2012. She's since added a second colony. She's deliberately keeping the colonies small. Total count: around 100.
Wishon, a lab assistant at the California Department of Food and Agriculture since late last summer, said she became interested in bed bugs while studying with UC Davis forensic entomologist Robert Kimsey. Also spurring her interest: the questions asked at the Bohart. "Visitors were bringing in various insects and asking if they were bed bugs," she said. Among the insects: carpet beetles, dog ticks, swallow bugs and bat bugs.
Wishon aims to dispel the myths about bed bugs. There's a lot of misinformation on the Internet, she says. Unlike many insects, "they don't spread diseases."
Wishon maintains her colonies in Briggs Hall, home of the UC Davis Department of Entomology and Nematology. Any escapees? No. She's especially observant with the first instars, which are about one millimeter long.
Wishon is a past president of the UC Davis Entomology Club and recipient of the department’s 2011 Outstanding Undergraduate Student Award.
The Bohart Museum, directed by Lynn Kimsey, professor of entomology at UC Davis and housing nearly eight million specimens, is the seventh largest insect collection in North America. It is also the home of the California Insect Survey, a storehouse of insect biodiversity. Noted entomologist Richard M. Bohart (1913-2007) founded the museum in 1946.
Special attractions at the Bohart include a live "petting zoo," with critters such as Madagascar hissing cockroaches, walking sticks, millipedes, tarantulas and praying mantids. Visitors can also shop at the year-around gift shop (or online) for t-shirts, jewelry, insect nets, posters and books, including the newly published children’s book, “The Story of the Dogface Butterfly,” written by UC Davis doctoral candidate Fran Keller and illustrated (watercolor and ink) by Laine Bauer, a 2012 graduate of UC Davis. The 35-page book also includes photos by naturalist Greg Kareofelas of Davis, a volunteer at the Bohart.
Sunday' open house is just one of the many scheduled weekend open houses held throughout the academic year. Regular hours are from 9 a.m. to noon and from 1 to 5 p.m., Monday through Thursday. The insect museum is closed to the public on Fridays and on major holidays. Admission is free. More information, including information on group tours, is available from Tabatha Yang at firstname.lastname@example.org.
Bed bug. (Photo by Piotr Naskrecki, courtesty of the Centers for Disease Control and Prevention.)
There's a good reason why they're called "the menace in the mattress." The mattress is one of their hiding spots.
They? Bed bugs. Parasites that feed on human blood.
"Bed bug infestations are rampant locally, nationally and globally," says Tanya Drlik, integrated pest management (IPM) coordinator of Contra Costa County who will speak at the May 3rd meeting of the Northern California Entomology Society, to be held in the Harry H. Laidlaw Jr. Honey Bee Research Facility on Bee Biology Road, UC Davis.
“We’ve had a reprieve from bed bugs for about 50 years, but now they’re back,” said Drlik, who will discuss “The Resurgence of Bed Bugs and Current Effective Control Methods” at 9:45 a.m. in the Laidlaw conference room.
The society (membership is open to everyone) will meet from 9:15 a.m. to 2:30 p.m. Drlik is one of five speakers on topics ranging from bed bugs to lacewings to endangered species.
Drlik, who formed the Bed Bug Task Force to help prepare Contra Costa County to meet the challenges of the mounting bed bug infestation, says that bed bugs “have no regard for wealth or class—everyone is vulnerable. Bed bugs can be found all across the country in apartment buildings, hotels and motels, private residences, hospitals, waiting rooms, fire station, taxis and buses…and the list goes on. They’ve infested four-star hotels and penthouses as well as homeless shelters and rundown apartment buildings.”
“Judging by history and the experience of other jurisdictions across the country, the problem is only going to increase, and more and more public buildings and homes will experience infestations,” said Drlik, who has a master’s degree in ecosystem management and nearly 40 years of experience in the field of IPM.
“Bed bugs are difficult to control because of their small size, their secretive nature and their growing resistance to the pesticides we have at our disposal. Poverty, clutter, and poor housekeeping do not cause bed bug infestations, but they make eliminating infestations much more difficult.”
Bed bugs “can be seen in epidemic proportions in some areas of the United States, including New York City and central and southwestern Ohio,” said Drlik, adding that since 2004, New York City has experienced a 2277 percent increase in complaints about bed bugs in the five boroughs (source: New York City Department of Housing Preservation and Development). “Colleagues in the Franklin County Health Department in central Ohio have commented to us that they were completely unprepared for the rapidity with which bed bugs spread throughout their county.”
Other topics at the Nor Cal Entomology Society meeting include:
- “Protecting Invertebrates Listed as Threatened or Endangered Species in California” by Darlene McGriff, California Natural Diversity Database (California Department of Fish and Game).
- “California Forest Insect Conditions Going into 2012” by Cynthia Snyder, U.S. Forest Service, Shasta-McCloud Management Unit.
- “PG&E’s Use of Safe Harbor Agreements and Programmatic Permits to Protect Endangered Organisms on Utility Rights of Way” by Peter Beesley, PG&E.
- “In-Depth Look at Lacewings, an Augmentative California Biological Control Agent” by Shaun Winterton, California Department of Food and Agriculture Biological Control Program.
All great topics, to be sure. Bed bugs, however, are the big draw, in more ways than one.
We remember an Entomological Society of America (ESA) seminar on these bloodsuckers that resulted in a flurry of inspections back in the hotel rooms: mattress, baseboard, furniture, closet and luggage checks.
For excellent bed bug resources, check out the ESA website. And for more information on the Nor Cal Entomology Society meeting, see the UC Davis Department of Entomology website.
Bed bug, Cimex lectularius, shown here ingesting a blood meal from the arm of a “voluntary” human host, is wreaking havoc locally, nationally and globally. (Photo by Piotr Naskrecki, published by the Centers for Disease Control and Prevention on the Wikipedia website.)
This bed bug drew a lot of attention at a UC Davis Department of Entomology display during the campuswide Picnic Day. (Photo by Kathy Keatley Garvey)